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1. You measure 48 randomly selected textbooks' weights, and find they have a mean weight of 46 ounces. Assume the population
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2. The mean weight of female dancers in a local modern dance company is at least 138 lbs. Express the null and alternative
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3. You wish to test the following claim (H_a) at a significance level of alpha= 0.10.H_o : p = 0.59 H_a : p > 0.59 You obtain a
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4. You are conducting a study to see if the proportion of voters who prefer Candidate A is significantly less than 0.56. You use a
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5. In 2012, the population in a town was 8,000 people. In 2017, the population was 11,400. What was the percent increase in the
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6. For the following data set, calculate the percentage of data points that fall within one standard deviation of the mean, and
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   2. asked by idk
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7. Hunter misses 10% of the free throws he attempts in a season. How many total free throws did he attempt if he missed 54?
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   2. asked by Maria Candea
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8. Horn lengths of Texas longhorn cattle are normally distributed. The mean horn spread is 60 inches with a standard deviation of
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   2. asked by idk
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9. Which pair of points should be used to find the line of best-fit for the scatterplot?.On a graph, a trend line would go through
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10. Which equation of a line of best-fit reflects a negative correlation?y = StartFraction 1 Over 70 EndFraction x + 312 y =
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11. You weigh 5 kittens all from the same litter and get the following data (in pounds):1.05, 1.2, 1.15, 1.2, 1.4. Calculate the
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12. In the previous units, three of the frequentist methods of estimation we've covered are the maximum likelihood estimation (MLE),
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13. How could you change this line to be a better line of best fit for the data plot?8 Number of Medica Conditions 4 2 20 40 60 80
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14. y = -1.562x + 8.277. for each additional ice cube added to a glass, the least squares regression line predicts that the
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15. A graph titled Monthly Sales and Advertising Costs has Advertising Costs (1,000 dollars) on the x-axis and sales (1,000 dollars)
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16. Engineers are designing a large elevator that will accommodate 48 people. The maximum weight the elevator can hold safely is
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17. A population has mean u=23 and standard deviation o=3. Find u-x and o-x for samples of size n=25. Round your answers to one
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18. According to a website, the mean number of apps on a smartphone in the United States is 80. Assume the number of apps is
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19. The number of shipwrecks in a year along a certain shipping route has a population distribution as shown in the probability
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20. Find the median and mean of the data set below:47, comma, 15, comma, 6, comma, 49, comma, 45, comma, 30 47,15,6,49,45,30
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21. Find the median and mean of the data set below:33, comma, 28, comma, 46, comma, 41, comma, 9, comma, 14 33,28,46,41,9,14
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22. Find the median and mean of the data set below:11, comma, 6, comma, 37, comma, 34, comma, 7 11,6,37,34,7
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23. Find the median and mean of the data set below:30, comma, 7, comma, 2, comma, 10, comma, 19 30,7,2,10,19
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24. 7, 9, 10, 11, 11. what is the average deviation from the mean number? is it 9.6, 6.4, 0.16, or 1.28?
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25. 7, 9, 10, 11, 11. what is the average deviation from the mean number
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26. Last year the 6th grade had 350 students. This year the number decreased 36%. How many students are in this year’s 6th grade
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    2. asked by Maria Candea
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27. In 2012, the population in a town was 8,000 people. In 2017, the population was 11,400. What was the percent increase in the
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    2. asked by Maria Candea
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28. Which regression line properly describes the data relationship in the scatterplot?On a graph, a trend line has a positive slope.
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29. The table shows the weight of a dog in pounds at various ages in months.Age vs. Weight of a Dog Age in months Weight in pounds 3
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30. Which trend line properly describes the data relationship in the scatterplot?mc007-1.jpg mc007-2.jpg mc007-3.jpg mc007-4.jpg
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31. When a trend line is drawn on a scatterplot, there are 4 points above the trend line. About how many points should be below the
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32. Which of the following scatterplots would have a trend line with a positive slope?mc013-1.jpg mc013-2.jpg mc013-3.jpg
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33. Which of the following scatterplots do not show a clear relationship and would not have a trend line?mc003-1.jpg mc003-2.jpg
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34. Which statement is true about a trend line?A regression line and a trend line are opposite terms. A regression line and trend
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35. If the mean of a data set is 10 and one of the data points is 8, what is the absolute deviation for this data point?
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36. The table contains data for five students: hours slept, x, and corresponding test scores, y. Use the regression calculator to
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37. Enter the t-shirt price and sales data Sera collected into the regression calculator and generate a regression line.A 2-column
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38. A graph has outside Temperature (degrees Fahrenheit) on the x-axis, and sales of iced tea (dollars) on the y-axis. Points are at
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39. The graph displays the number of points scored and the number of basketball games played. Determine the average points per game.
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40. Sam conducted a survey at lunchtime to find the number of hours that students spent studying for the science test. He asked 15
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    2. asked by Brianna sapp
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41. What is the median of these numbers2,6,9,5,2,41,8 Show workings
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    2. asked by Chioma
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42. What is the average of these numbers2,6,9,5,2,41,8 Show orkings
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    2. asked by Chioma
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43. The stem-and-leaf plot below gives the amount of money spent by each of 17 couples at a restaurant. Use the plot to answer the
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44. A population has mean u=31 and standard deviation o=6. Find u-x and o-x for samples of size n=25. Round your answers to one
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45. If n is the sample size and x is the number in the sample who have a certain characteristic, then x/n is called the sample
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46. A roller coaster is being designed that will accommodate 60 riders. The maximum weight the coaster can hold safely is 12,000
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47. A manufacturer of aluminum cans measured the level of impurities in 24 cans. The amounts of impurities, in percent, were as
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48. A video game player had the following scores: 287, 389, 287, 329, 295, 290, 397, 387, 365. What does the IQR indicate about this
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49. Which option is true about the outliers of the skewed dataset 5, 6, 6, 7, 7, 8, 8, 8, 9, 9, 14, 16?(1 point)Responses The
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50. Calculate the 5-number summary of the skewed dataset 5, 6, 6, 7, 7, 8, 8, 8, 9, 9, 14, 16. Which of the following choices is
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51. QuestionCalculate the 5-number summary of the skewed dataset 15, 16, 16, 17, 17, 18, 18, 18, 19, 19, 29. When constructing the
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52. Use the standard deviation to compare the variability of the datasets. Round to the nearest hundredths.Dataset A: 11, 7, 12, 8,
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53. If the mean of a dataset is 59, what is the deviation of the data point at 43?(1 point)Responses 4 4 −16 negative 16 256 256
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54. Use the table to answer the question.Value 3 4 5 Total Observations 2 3 2 Charles records the number of miles he walks every
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55. Use the table to answer the question.Value 4 5 6 Total Observations 1 3 1 Calculate the standard deviation of the data set.
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56. Which measure of variability—range or IQR—best describes the spread of the dataset?Social studies group project grades (out
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    2. asked by Dave
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57. The expressionrepresents the average number of cars washed daily at a local car wash on Day , Day , Day , Day , and Day , where
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58. Use the image to answer the question.An illustration shows Quadrant 1 of a coordinate plane. The x-axis is labeled Games and
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59. Calculate the 5-number summary of the skewed dataset 5, 6, 6, 7, 7, 8, 8, 8, 9, 9, 14, 16. Which of the following choices is
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    2. asked by Ur m0m
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60. Glass plates are packaged and shipped to a retail store, but 13% of all the shipped plates arrive broken. In the last shipment,
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    2. asked by can ufeelthelifeinsidecanufeelthefireeethefireeeth
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61. Use the image to answer the question.A line graph is titled as “Biker A’s Distance Traveled”. The x-axis is labeled
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62. At Park Junior High, 10%, or 160 students, play a musical instrument. Which statements are correct? Select
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    2. asked by can ufeelthelifeinsidecanufeelthefireeethefireeeth
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63. se the graph to answer the question below.Which statement is true based on the graph? The graph representing the cost of x kg of
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64. The students in Ms. Rodriguez's class reported the number of hours they spend exercising in atypical week. They recorded their
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    2. asked by Brianna sapp
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65. Which describes the correlation shown in the scatterplot?On a graph, points are grouped together to form a horizontal cluster.
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66. Which describes the correlation shown in the scatterplot?On a graph, points are grouped together and decrease. There is a
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67. Which scatterplot shows the weakest positive linear association?On a graph, points are grouped closely together and increase. On
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68. A scatterplot has a negative, linear correlation. Which statement is true about the relationship between the x- and y-values?As
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69. Which statement is true regarding the traits of scatterplots?The strength of a correlation is independent of whether the
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70. What type of association is shown by the scatterplot?On a graph, points are grouped together to form a curved line. linear,
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71. Which statement is true?A strong association implies a positive correlation. A positive correlation implies a strong
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72. On a graph, points are grouped together and decrease.Identify the level of association and correlation in the scatterplot.
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73. On a graph, points are grouped together and curve up and down.Analyze the scatterplot to determine its characteristics. Check
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74. On a graph, points are grouped closely together and increase.Determine if there is a correlation and slope for the scatterplot.
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75. On a graph, points are scattered all over the graph.Determine if there is a correlation and slope for the scatterplot. positive
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76. On a graph, points are grouped closely together and decrease.Draw a line to approximate the points on the graph. Use the slope
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77. On a graph, points are grouped closely together in a horizontal line.Identify the correlation in the scatterplot.
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78. On a graph, points are grouped closely together and decrease.Identify the correlation in the scatterplot.
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79. On a graph, points form a curved line.Using the scatterplot, determine the association.
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80. Use the tables to answer the question.Table 1 Data Point 11 15 9 10 11 12 12 10 9 Distance from Mean 0 4 2 1 0 1 1 1 2 Table 2
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81. Use the images to answer the question.Graph 1 A dot plot titled assessment score per student has a horizontal axis ranging from
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82. tion from the Mean Quick Check3 of 53 of 5 Items Question Given the following descriptions, which of the following correctly
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83. Use the image to answer the question.A horizontal number line with arrows at both ends is titled at the top as Soccer Team B.
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84. Five friends recorded the number of action figures each friend has. The following is the dataset they recorded: {7,9,10,11,11}.
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85. QuestionDataset A, {7,9,9,12} , and dataset B, {6,8,10,13} , both have a mean of 9.25. Calculate the average deviation from the
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86. Complete the table to find the deviation of each data point.(2 points)Mean 9.25 Data Point 7 9 9 12 Deviation
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87. Explain a situation when neither the mean nor the median is a good descriptor for a dataset.(1 point)Responses when the dataset
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88. Use the image to answer the question.A dot plot is titled Number of Hours Calculus Students Studied For Exams. The number line
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89. Use the image to answer the question.A distribution curve is plotted by joining the four points A, B, C, and D on a plane. A
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90. When comparing the means and medians of skewed data, which of the following is correct?(1 point)Responses The mean is always
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91. Use the image to answer the question.A dot plot is labeled 'Alarm Clock Set.' The horizontal axis ranges from 5 AM to 7 in
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92. The dataset 3, 6, 2, 8, 6, 6, 9, 10, 3 represents the scores on the most recent quiz. Describe the change in the distribution of
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93. The results of the mid-term exam in an Algebra I class were as follows:34,45,50,56,60,65,70,70,70,70,72,77,77,80,82,86,86,89,95,
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    2. asked by idk
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94. 34,45,50,56,60,65,70,70,70,70,72,77,77,80,82,86,86,89,95,98what is the range of data within one standard deviation of the mean
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    2. asked by idk
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95. 34,45,50,56,60,65,70,70,70,70,72,77,77,80,82,86,86,89,95,98find the one standard deviation
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    2. asked by idk
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96. 34,45,50,56,60,65,70,70,70,70,72,77,77,80,82,86,86,89,95,98find the standard devitation
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    2. asked by idk
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97. 34,45,50,56,60,65,70,70,70,70,72,77,77,80,82,86,86,89,95,98find the mean
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    2. asked by idk
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98. Estimate the median of the data in the histogram. (1 point) Responses The median is in the bin 10-14.9 The median is in the bin
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99. 61.3 - 54.1
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    2. asked by Brianna sapp
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100. A garden contains 40 flowers, 30 of which are red. What is the frequency of red flowers?(1 point) Responses 1.0 1.0 0.5 0.5 0.75
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