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Jennifer
Questions (1,144)
Find the probability of a data value < 19.
2 answers
350 views
Assume that the population of heights of male college students is approximately normally distributed with mean of 72.15 inches
0 answers
510 views
Answer the following:
(A) Find the binomial probability P(x = 4), where n = 12 and p = 0.30. (B) Set up, without solving, the
1 answer
904 views
A set of 50 data values has a mean of 27 and a variance of 16.
I. Find the standard score (z) for a data value = 19. II. Find the
0 answers
983 views
Construct both an ungrouped and a grouped frequency distribution for the data given below:
207 211 204 208 202 203 211 202 205
3 answers
712 views
An insecticide company exposes 10,000 cockroaches to its newest product, and exposes another 10,000 to their previous formula.
0 answers
439 views
(A) Classify the following as an example of nominal, ordinal, interval, or ratio level of measurement, and state why it
1 answer
960 views
For the table that follows, answer the following questions:
x y 1 -8 2 -11 3 -14 4 - Would the correlation between x and y in the
1 answer
821 views
Rank the following data in increasing order and find the positions and values of both the 39th percentile and 67th
percentile. 5
1 answer
497 views
The following data lists the average monthly snowfall for January in 15 cities around the US:
42 45 8 18 45 15 31 46 3 33 2 6 32
1 answer
492 views
Given the following frequency distribution, find the mean, variance, and standard deviation.
Class Frequency 31-33 18 34-36 25
2 answers
705 views
Given the following frequency distribution, find the mean, variance, and standard deviation.
Class Frequency 31-33 18 34-36 25
1 answer
487 views
Given a level of confidence of 99% and a population standard deviation of 13, answer the following:
(A) What other information is
0 answers
472 views
If there is a radiation that has a half life of 10 days and we have it for 110 days, what will be the fraction of radiation
1 answer
349 views
A ball player hits a home run, and the baseball just clears a wall 17.0 m high located 124.0 m from home plate. The ball is hit
1 answer
2,282 views
which one of the following words phrases if the superlative form of an adjective?
A.Less B.Slower C.Most active D.more rapidly
2 answers
581 views
Assume that you have 2.10 of the deadly gas hydrogen cyanide, . What is the volume of the gas at STP?
1 answer
672 views
c3h8+5o2 3co2+4h2o How many kg of propane only is in a 20lb tank?
1 answer
421 views
a. Calculate the delta H, delta G, and equilibrium constant for the reaction of methane with Cl2 to give CH3Cl and HCl. Use the
1 answer
1,259 views
I need help writing an outline for what I have written here.
I would like to do my assignment of Microbes, more to the point on
1 answer
1,060 views
I need help writing an outline for what I have written here.
I would like to do my assignment of Microbes, more to the point on
0 answers
502 views
In testing a new drug, researchers found that 10% of all patients using it will have a mild side effect. A random sample of 14
4 answers
520 views
In testing a new drug, researchers found that 10% of all patients using it will have a mild side effect. A random sample of 14
0 answers
1,080 views
Classify the following as discrete or continuous random variables.
(A) The time it takes to run a marathon (B) The number of
2 answers
991 views
How many green elements are required to make this a legitimate probability distribution if there are a total of 50 elements in
1 answer
481 views
In testing a new drug, researchers found that 10% of all patients using it will have a mild side effect. A random sample of 14
0 answers
597 views
How many green elements are required to make this a legitimate probability distribution if there are a total of 50 elements in
0 answers
879 views
In testing a new drug, researchers found that 10% of all patients using it will have a mild side effect. A random sample of 14
0 answers
953 views
Classify the following as discrete or continuous random variables.
(A) The time it takes to run a marathon (B) The number of
1 answer
2,804 views
A bag of colored blocks contains the following assortment of colors:
red (18), blue (14), orange (20), purple (14), green (10),
0 answers
470 views
You are given the following data.
# of Absences Final Grade 0 96 1 92 2 71 3 66 4 60 5 51 A. Find the correlation coefficient for
0 answers
452 views
Three cards are selected, one at a time from a standard deck of 52 cards. Let x represent the number of tens drawn in a set of 3
0 answers
596 views
USA snapshot presented a bar graph depicting business travelers’ impression of wait times in airport security lines over the
1 answer
505 views
You are given the following data.
# of Absences Final Grade 0 96 1 92 2 71 3 66 4 60 5 51 A. Find the correlation coefficient for
0 answers
427 views
Three cards are selected, one at a time from a standard deck of 52 cards. Let x represent the number of tens drawn in a set of 3
0 answers
497 views
The linear correlation coefficient is a numerical value that ranges from -1.00 to +1.00. Describe in a sentence or two the
2 answers
597 views
USA snapshot presented a bar graph depicting business travelers’ impression of wait times in airport security lines over the
2 answers
794 views
The following data lists the average monthly snowfall for January in 15 cities around the US:
29 26 6 46 17 34 15 45 19 43 37 6 9
1 answer
457 views
Starting with the data values 70 and 100, add three data values to the sample so that the mean is 81, the median is 91, and the
6 answers
468 views
Starting with the data values 70 and 100, add three data values to the sample so that the mean is 81, the median is 91, and the
0 answers
659 views
Rank the following data in increasing order and find the position and value of the 56th percentile. Please show all of your
8 answers
466 views
I. Use Chebyshev’s theorem to find what percent of the values will fall between 183 and 227 for a data set with a mean of 205
0 answers
524 views
Given the following frequency distribution, find the mean, variance, and standard deviation. Please show all of your work.
Errors
0 answers
526 views
Start with x=75 and add four x values to make a smaple of five data such that the standard deviation of these data equals 0.
2 answers
995 views
A set of 50 data values has a mean of 15 and a variance of 36.
Find the standard score of a data value = 30
4 answers
417 views
Rank the following data in increasing order and find the position and value of the 56th percentile. Please show all of your
3 answers
1,022 views
A Math test has a mean of 51 and standard deviation of 5.0. Find the corresponding z scores for:
I. a test score of 64 II. a test
4 answers
597 views
I. Use Chebyshev’s theorem to find what percent of the values will fall between 183 and 227 for a data set with a mean of 205
4 answers
696 views
Given the following frequency distribution, find the mean, variance, and standard deviation. Please show all of your work.
Errors
1 answer
561 views
How are z scores and the "empirical rule" related?
1 answer
445 views
Given the following frequency distribution, find the mean, variance, and standard deviation. Please show all of your work.
Errors
1 answer
451 views
A set of 50 data values has a mean of 15 and a variance of 25. Find the standard score of a data value = 20
3 answers
1,042 views
When a 5.50g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee cup calorimeter, the temperature of
1 answer
905 views
Find the length of the golden rectangle whose width is 14.72
2 answers
1,022 views
I have been working on this question all day and can not figure out what to do.
The question says according to the Quadratic
1 answer
661 views
why is this a poor model for hitting a baseball?
y = -0.002x^2 + 0.879x + 3.981 I know it gets hit at approx. 4 feet high. The -a
1 answer
987 views
New question: A baseball was 2.74 feet above ground when it was hit. It reached a max. height of 116.3ft when it was approx
1 answer
653 views
why is this a poor model for hitting a baseball?
y = -0.002x^2 + 0.879x + 3.981 I know it gets hit at approx. 4 feet high. The -a
1 answer
419 views
Suppose the ball was 2.74 feet above ground when it was hit. It reached a max. height of 116.3ft when it was approx 215.3 ft
1 answer
451 views
Baseballs cost $5 and baseball gloves cost $20. Assume you have $100 total to spend on these items. Construct a table similar to
0 answers
592 views
Can DNA control how many teeth we will have?
0 answers
405 views
This is not a test question, but I did not know what the appropriate topic for my question is.
If I used the terms 2, 3, 4, 8
5 answers
765 views
Hi there!
I have this question for my bio/genetics homework, and I can't seem to figure it out. It reads, "A true-breeding red
1 answer
542 views
I have three problems to answer dealing with Fibonacci numbers. I understand the first two, but would like for reassurrance that
1 answer
675 views
For a distribution in which the mean is 100 and the standard deviation is 12, find the following: the percentile of a score of
1 answer
485 views
A 73 kg student traveling in acar with a constant velocity has a kinetic energy of 1.3 x 10^4 J. What is the speedometer reading
0 answers
512 views
Calculate the amount of 6 M nitric acid you need to add to fully react with .5 grams of copper and add a 20 percent excess.
5 answers
573 views
In a right triangle ABC, C = 90°, B = 38° 35' and a = 6.434 mi. Solve for all the missing parts using the given information.
2 answers
840 views
A 41 g piece of ice at 0.0 degree Celsius is added to a sample of water at 8.6 degree Celsius. All of the ice melts and the
1 answer
906 views
Suggest any limitations to the use of recrystallization as a purification method for a solid.
4 answers
2,215 views
I'm suppose to draw velocity time and acceleration time graph for a rocket that is launched vertically into the air and falls
0 answers
528 views
The label on a 1-pint bottle of mineral water lists the following components. If the density is the same as pure water and you
0 answers
623 views
In the manufacturing of computer chips, cylinders of silicon are cut into thin wafers that are 2.80 inches in diameter and have
1 answer
1,530 views
Suppose you have two 100-{\rm mL} graduated cylinders. In each cylinder there is 58.5mL of water. You also have two cubes: One
2 answers
658 views
In the explosion of a hydrogen filled balloon, 0.50 g of hydrogen reacted with 4.0 g of oxygen to form how many grams of water
3 answers
2,434 views
A car can average 140 miles on 5 gallons of gasoline. Write an equation for the distance "d" in miles the car can tavel on "g"
2 answers
1,214 views
You are on a boat heading out to sea. The boat is going 5m/s toward a buoy (the origin in your chosen frame of reference) that
1 answer
1,082 views
. Application 3 to chapter 15 (page 340) suggests increased health care expenditures will crowd out other expenditures. What
2 answers
779 views
Find the gradient of the line joining the points (5,2) and (6,3)
2 answers
585 views
A theater purchases $500 worth of Sticky Bears and chocolate bombs. Each bag of Sticky Bears costs $1.50 and each bag of
1 answer
759 views
Twenty (20) students randomly assigned to an experimental group are studying for a test while listening to classical music.
1 answer
689 views
A parking lot has 5 spots remaining and 5 different cars in line waiting to be parked. If one of the cars is too big to fit in
2 answers
1,647 views
solve by the substitution method
5x+7y=6 -6x+y=21
1 answer
434 views
can someone please look over this and tell me what you think?? thanks!
The history of the Western Art is a steeped in religious
8 answers
562 views
When m is divided by 7, the remainder is 2. What is the remainder when 4m is divided by 7?
Please give me an explanation and not
2 answers
3,359 views
Your whole family has taken showers before you, dropping the temperature in the water heater to 18 degrees Celsius. If the water
2 answers
1,846 views
I need help with my assignment how much will it be to have someone help me with it it is due by tomorrow?
1 answer
433 views
for the following equation, state the value of the discriminate and then describe the nature of the solutions, from the
1 answer
608 views
You throw a ball horizontally off of a building with a horizontal velocity of 5 m/s. What's the ball horizontal velocity 8
2 answers
579 views
If a car travel at an average speed of 80 km per hr for 20 min, and then slowed down to an average speed of 50 km per hr over
1 answer
492 views
Although the abscess was incised and drained in the emergency room and cultures were obtained, which grew coag-positive
4 answers
860 views
The point (-1,0) lies on a circle whose center is at (-6,5). Find an equation of this circle
2 answers
470 views
The half life of carbon 14 is 5700 years. If the carbon 14 level measured in a fossilized bone has only 1/4 of the original
4 answers
2,642 views
Consider a triangle ABC like the one below. Suppose that A=45 degress, B=34 degress, and a= 70. Solve the triangle.
Round your
1 answer
744 views
I have a parabola that I have to write as an equation I found the vertex as (-3,-2) and the following points
1 answer
480 views
Rewrite cos(tan^-1(v)) as an algebraic expression in v.
Can someone help me with this problem? Thanks
4 answers
1,977 views
The SOO Company has machinery that it acquired a number of years ago at a cost of $812,000. As of December 31, 2012 the company
0 answers
534 views
Can someone give me feedback on this please.
Introduction Is same-sex marriage going to create issues in our society? Same-sex
3 answers
856 views
A lot is in the shape of a right triangle. The shorter leg measures 90 meters. The hypotenuse is 30 meters longer than the
2 answers
1,801 views
Does anyone know for the work titled Blind MAn by William H. Johnson know what materials he used would it by tempura and
1 answer
402 views
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