8 %
To calculate the percentage of students who own a bird as a pet, we add the number of students who own a bird from both samples (8+12 = 20) and divide it by the total number of students (200).
20/200 = 0.10
0.10 x 100 = 10%
Therefore, 10% of students own a bird as a pet.
The data from two random samples of 100 students regarding what pet they own is given below.
Dog Cat Bird Total
Sample 1 54 38 8 100
Sample 2 39 49 12 100
Based on the two samples, what percentage of students own a bird as a pet?
(1 point)
________ %
11 answers
so what do i put in the blank
10 %
Question
These are the scores for two randomly selected lacrosse teams. Find the range of the number of goals scored by each team. Based on the range, which team has a more consistent number of goals scored?
Lacrosse Team 1: 6 0 4 17 3 12
Lacrosse Team 2: 23 14 22 14 17 22(2 points)
The range of the number of goals scored by Lacrosse Team 1 is ______
. The range of the number of goals scored by Lacrosse Team 2 is ______
. Based on the range, Lacrosse Team _____
has a more consistent number of goals scored.
These are the scores for two randomly selected lacrosse teams. Find the range of the number of goals scored by each team. Based on the range, which team has a more consistent number of goals scored?
Lacrosse Team 1: 6 0 4 17 3 12
Lacrosse Team 2: 23 14 22 14 17 22(2 points)
The range of the number of goals scored by Lacrosse Team 1 is ______
. The range of the number of goals scored by Lacrosse Team 2 is ______
. Based on the range, Lacrosse Team _____
has a more consistent number of goals scored.
To find the range for each team, we need to calculate the difference between the highest and lowest number of goals scored.
For Lacrosse Team 1:
Range = 17 (highest score) - 0 (lowest score) = 17
For Lacrosse Team 2:
Range = 23 (highest score) - 14 (lowest score) = 9
Therefore, the range of the number of goals scored by Lacrosse Team 1 is 17 and the range of the number of goals scored by Lacrosse Team 2 is 9.
Based on the range, Lacrosse Team 2 has a more consistent number of goals scored since their range is smaller, indicating less variability in the scores.
For Lacrosse Team 1:
Range = 17 (highest score) - 0 (lowest score) = 17
For Lacrosse Team 2:
Range = 23 (highest score) - 14 (lowest score) = 9
Therefore, the range of the number of goals scored by Lacrosse Team 1 is 17 and the range of the number of goals scored by Lacrosse Team 2 is 9.
Based on the range, Lacrosse Team 2 has a more consistent number of goals scored since their range is smaller, indicating less variability in the scores.
Use the image to answer the question.
An illustration shows two sets of dot plots. One is titled Gas Mileage in miles per gallon, Cars and the other is Gas Mileage in miles per gallon, S U Vs. The plots are shown as dots in a vertical row over each number on a number line. For Cars, a number line with arrows on both ends ranges from 18 to 22 in increments of 1. There is 1 dot above 18, 2 dots above 19, 3 dots above 20, 2 dots above 21, and 1 dot above 22. For S U Vs, a number line with arrows on both ends ranges from 21 to 25 in increments of 1. There is 1 dot above 21, 1 dot above 22, 2 dots above 23, 2 dots above 24, and 3 dots above 25.
The dot plots show the gas mileage for randomly selected cars and SUVs. Which data values do both distributions have in common?
(1 point)
The data value in common for both distributions with the lowest number is
.
The data value in common for both distributions for the highest number is
.
An illustration shows two sets of dot plots. One is titled Gas Mileage in miles per gallon, Cars and the other is Gas Mileage in miles per gallon, S U Vs. The plots are shown as dots in a vertical row over each number on a number line. For Cars, a number line with arrows on both ends ranges from 18 to 22 in increments of 1. There is 1 dot above 18, 2 dots above 19, 3 dots above 20, 2 dots above 21, and 1 dot above 22. For S U Vs, a number line with arrows on both ends ranges from 21 to 25 in increments of 1. There is 1 dot above 21, 1 dot above 22, 2 dots above 23, 2 dots above 24, and 3 dots above 25.
The dot plots show the gas mileage for randomly selected cars and SUVs. Which data values do both distributions have in common?
(1 point)
The data value in common for both distributions with the lowest number is
.
The data value in common for both distributions for the highest number is
.
The data values in common for both distributions are where the dots overlap on the number line.
For the lowest number in common: Both distributions have a dot above 21, so the data value in common for both distributions with the lowest number is 21.
For the highest number in common: Both distributions have a dot above 22, so the data value in common for both distributions for the highest number is 22.
For the lowest number in common: Both distributions have a dot above 21, so the data value in common for both distributions with the lowest number is 21.
For the highest number in common: Both distributions have a dot above 22, so the data value in common for both distributions for the highest number is 22.
Fifteen students are randomly selected from two different classes. They were asked how many books they read during the summer. Their responses are as follows. Find the median number of books read by each class. Which class has a higher median number of books read?
Class 1: 0, 5, 3, 6, 7, 8, 10, 1, 1, 4, 5, 6, 4, 5, 6
Class 2: 2, 2, 4, 3, 0, 0, 6, 7, 10, 9, 6, 5, 3, 1, 2
(2 points)
The median number of books read during the summer by Class 1 is
.
The median number of books read during the summer by Class 2 is
.
Class
has a higher median number of books read during the summer.
Class 1: 0, 5, 3, 6, 7, 8, 10, 1, 1, 4, 5, 6, 4, 5, 6
Class 2: 2, 2, 4, 3, 0, 0, 6, 7, 10, 9, 6, 5, 3, 1, 2
(2 points)
The median number of books read during the summer by Class 1 is
.
The median number of books read during the summer by Class 2 is
.
Class
has a higher median number of books read during the summer.
First, let's arrange the data in each class in numerical order:
Class 1: 0, 1, 1, 3, 4, 4, 5, 5, 5, 6, 6, 6, 7, 8, 10
Class 2: 0, 0, 1, 2, 2, 2, 3, 3, 4, 5, 6, 6, 7, 9, 10
Now, let's find the median for each class:
For Class 1 with 15 values, the median is the middle value when the data is in numerical order. In this case, the middle value is the 8th value, which is 5. Therefore, the median number of books read during the summer by Class 1 is 5.
For Class 2 with 15 values, the median is also the middle value. In this case, the 8th and 9th values (both 3) are in the middle, so the median for Class 2 is also 3.
Comparing the medians, Class 1 has a higher median number of books read during the summer.
Class 1: 0, 1, 1, 3, 4, 4, 5, 5, 5, 6, 6, 6, 7, 8, 10
Class 2: 0, 0, 1, 2, 2, 2, 3, 3, 4, 5, 6, 6, 7, 9, 10
Now, let's find the median for each class:
For Class 1 with 15 values, the median is the middle value when the data is in numerical order. In this case, the middle value is the 8th value, which is 5. Therefore, the median number of books read during the summer by Class 1 is 5.
For Class 2 with 15 values, the median is also the middle value. In this case, the 8th and 9th values (both 3) are in the middle, so the median for Class 2 is also 3.
Comparing the medians, Class 1 has a higher median number of books read during the summer.
Question
The ages of randomly selected employees at two companies are recorded. Their ages are as follows.
Company A: 34, 28, 36, 27, 45, 44, 30, 42, 41, 40, 50, 48, 52, 45, 39, 38
Company B: 29, 32, 48, 51, 49, 37, 33, 35, 36, 40, 45, 48, 43, 43, 44, 48
Which of the following statements is true?
The mean age of employees from Company A is higher than the mean age of employees from Company B.
The median age of employees from Company A is lower than the median age of employees from Company B.
The range of ages of employees from Company A is higher than the range of ages of employees from Company B.
(1 point)
Responses
statements 1, 2, and 3
statements 1, 2, and 3
statements 1 and 2
statements 1 and 2
statements 1 and 3
statements 1 and 3
statements 2 and 3
The ages of randomly selected employees at two companies are recorded. Their ages are as follows.
Company A: 34, 28, 36, 27, 45, 44, 30, 42, 41, 40, 50, 48, 52, 45, 39, 38
Company B: 29, 32, 48, 51, 49, 37, 33, 35, 36, 40, 45, 48, 43, 43, 44, 48
Which of the following statements is true?
The mean age of employees from Company A is higher than the mean age of employees from Company B.
The median age of employees from Company A is lower than the median age of employees from Company B.
The range of ages of employees from Company A is higher than the range of ages of employees from Company B.
(1 point)
Responses
statements 1, 2, and 3
statements 1, 2, and 3
statements 1 and 2
statements 1 and 2
statements 1 and 3
statements 1 and 3
statements 2 and 3
Based on the given data:
For Company A:
Mean age = (34+28+36+27+45+44+30+42+41+40+50+48+52+45+39+38) / 16 = 40.56
Median age = 40th data point = 44
Range = Highest age - Lowest age = 52 - 27 = 25
For Company B:
Mean age = (29+32+48+51+49+37+33+35+36+40+45+48+43+43+44+48) / 16 = 40.625
Median age = 40th data point = 43.5
Range = Highest age - Lowest age = 51 - 29 = 22
Based on the calculations:
1. The mean age of employees from Company A (40.56) is lower than the mean age of employees from Company B (40.625). False
2. The median age of employees from Company A (44) is higher than the median age of employees from Company B (43.5). True
3. The range of ages of employees from Company A (25) is higher than the range of ages of employees from Company B (22). True
The correct statement is:
statements 2 and 3
For Company A:
Mean age = (34+28+36+27+45+44+30+42+41+40+50+48+52+45+39+38) / 16 = 40.56
Median age = 40th data point = 44
Range = Highest age - Lowest age = 52 - 27 = 25
For Company B:
Mean age = (29+32+48+51+49+37+33+35+36+40+45+48+43+43+44+48) / 16 = 40.625
Median age = 40th data point = 43.5
Range = Highest age - Lowest age = 51 - 29 = 22
Based on the calculations:
1. The mean age of employees from Company A (40.56) is lower than the mean age of employees from Company B (40.625). False
2. The median age of employees from Company A (44) is higher than the median age of employees from Company B (43.5). True
3. The range of ages of employees from Company A (25) is higher than the range of ages of employees from Company B (22). True
The correct statement is:
statements 2 and 3
11 answers