Use the Empirical Rule. The mean speed of a sample ofvehicles along a stretch of highway is 65 miles per hour,with a standard deviation of 3 miles per hour. Estimatethe percent of vehicles whose speeds are between 59miles per hour and 71 miles per hour. (Assume the dataset has a bell-shaped distribution.) approximately whatpercentage of vehicles travel between 59 mph and 71mph?

The random variable be the speed of a sample of vehicles along a stretch of highway.Mean: miles…

Answered: Use the Empirical Rule. The mean speed…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A distance was observed four times as 248.13, 248.06, 248.18, 248.15. The observations were given a weight of 3, 1, 2, and 3, respectively, by the observer. Calculate the weighted mean for line BC
The weights for new born babies is approximately normally distributed with the mean of 5.4 pounds and a standard deviation of 1.1 pounds. Use the cumulative Z-Score table to answer the questions below. Write your answers rounded to the nearest whole number. Consider a group of 2,000 new born babies 3. How many would you expect to weigh more than 4.41 pounds? 4. How many would you expect to weigh between 5.4 and 5.95 pounds?
Based upon past flight data, the average weight of checked baggage was 44.5 pounds with a standard deviation of 3.6 pounds. Weight of checked baggage was normally distributed. Any checked bag weighing more than 50 pounds requires an additional charge of $95. For a flight with 400 checked bags, approximately how many bags will require an additional charge? 25 98 O 2 6. O 63
Please answer the questions in the photo. Thank you!
the table below shows the number of books the Jefferson Middle school students readeach month for nine months. Month Sept. Oct. Nov. Dec. Jan. Feb. Mar. Apr. May Number of Books 293 280 266 280 289 279 275 296 271 If the students read only 101 books for the month of June, which measure of central tendency will have the greatest change?A. The mean will have the greatest change.B. The median will have the greatest change.C. All measures will have an equal change.D. The mode will have the greatest change.
A student scores 74 on a geography test and 264 on a mathematics test. The geography test has a mean of 80 and a standard deviation of 5. The mathematics test has a mean of 300 and a standard deviation of 24. If the data for both tests are normally distributed, on which test did the student score better relative to the other students in each class? OA. The student scored better on the mathematics test. OB. The student scored better on the geography test. OC. The student scored the same on both tests.
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 118 and standard deviation of 24 .Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.a. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places. ________%b. If you sampled 2000 people, how many would you expect to have BP> 160? Give your answer to the nearest person.________ peoplec. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1?________ %d. Your doctor tells you you are in the 30th percentile for blood pressure among US adults. What is your systolic BP? Round to 2 decimal places._______ lbs
The ages (in years)and heights (in inches) of all pitchers for a baseball team are listed. Find the cofficient of a variation for each of the two data sets. Then compare the result.
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The average driver spends $54 at the gas station each week with a standard deviation of $8. Assuming that the amount a driver spends on gas follows a normal distribution, solve for the percentage of drivers who spend: 1. More than $40? 2. Less than $30? 3. Between $30 and $40
The scores of students on a standardized test are normally distributed with a mean of 300 and a standard deviation of 40. What percentage of the scores are above 260? A. 40% B. 84% C. 68% D. 32% Can I please have a step by step explanation. Thank you
Please answer a and b

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