milesSuppose that the speeds of cars travelling on California freeways are normally distributed with a mean of 57. The highway patrol's policy is to issuehourmilestickets for cars with speeds exceeding 80The records show that exactly 2% of the speeds exceed this limit. Find the standard deviation of the speeds ofhourcars travelling on California freeways. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place.mileshour

Answered: Image /qna-images/answer/9f52f8f0-2f89-494a-a720-7d0bb5ddac7e.jpg

Answered: miles Suppose that the speeds of cars…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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The amount of caffeine in a sample of five-ounce servings of brewed coffee is shown in the histogram. Make a frequency distribution for the data. Then use the table to estimate the sample mean and the sample standard deviation of the data set. Click the icon to view the histogram. Complete the table. Round values to the nearest tenth as needed. Graph/chart f Midpoint x xf 70.5 Ay 30- 92.5 26 25- 114.5 136.5 20- 158.5 15- 12 Ef = Exf = 10- Find the mean of the data set. 5- X = (Round to the nearest tenth as needed.) 48.5 70.5 92.5 114.5 136.5 158.5 Complete the table. Round values to the nearest tenth as needed. Midpoint x (x-x)? (x-x)?f X-X 70.5 Print Done 92.5 114.5 136.5 158.5 (x-x)?r= ] of
A Fun-Size bag of M&M's contains 5 green, 4 red, 3 yellow, 6 orange, 4 blue, and 2 brown candies. Construct a relative frequency table of the results. Use two decimal places in your relative frequencies. Color Proportion Green i Red i Yellow i Orange Blue i Brown Total 1.00
can i get help finding the median?
Decide whether there is a relationship between mobile phone brands and the gender.
Assume that a randomly selected subject is given a bone density test. Bone density test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find P, the 11th percentile. This is the bone density score separating the bottom 11% from the top 89%. Which graph represents P ? Choose the correct graph below. O A. O B. OD. P11 P11 P11 P11 The bone density score corresponding to P1 is (Round to two decimal places as needed.) Click to select your answer(s). APR tv MacBook Air F9 F10 LLA 20 F3 F6 F8 F4 F5 F1 F2 & #3 7 8. %24
Construct a relative frequency distribution. Round the answers to two decimal places. Response Relative Frequency X Very likely Fairly likely Not too likely Not likely Total Ś
Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 57.4 degrees. The mean of the frequency distribution is (Round to the nearest tenth as needed.)
A. Population ? B. Population mean ? C. Median ? F. IQR ? G. Population standard deviation ?H. population variance ?
The frequency polygon to the right shows a distribution of IQ scores. Determine if the following statement is true or false according to the graph. Distribution of IQ Scores 30 25 The IQ score that more people had than any other IQ score, and which the scores fall off in a symmetrical manner as the deviation increases or decreases from it, is the 1Q score of 85. 20 15 10 75 85 95 105 115 125 135 IQ Score Is the statement true or false? O True O False Number of People (froquency)
Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 52.5 degrees. Low Temperature (o F) 40 - 44 45 - 49 50 - 54 55 - 59 60 – 64 D Frequency 2 9. ... The mean of the frequency distribution is degrees. (Round to the nearest tenth as needed.) Which of the following best describes the relationship between the computed mean and the actual mean? O A. The computed mean is close to the actual mean because the difference between the means is more than 5% of the actual mean. B. The computed mean is not close to the actual mean because the difference between the means is less than 5% of the actual mean. C. The computed mean is not close to the actual mean because the difference between the means is more than 5% of the actual mean. D. The computed mean is close to the actual mean because the difference between the means is less than 5% of the actual mean.

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