2 pu/21PrersaStats RM Proble1SetilSam scored a 27 on his ACT last back in October. The mean ACT score forhis class was 23, with a standard deviation of 2. Assuming a normal (bell-shaped) distribution for students' scores, answer the following:1) What percentage of students would you expect to have scored higher thanSam?-3013-321 7334 34 35025/242) What percentage of students should have scored between Sam's scoreand the mean?480044. 52 5%4n.3) Jessica scored a 21 on the ACT? What percentage of students would youexpect to have scored lower than Jessica?50.0(34.0)16.0%4) What percentage of students would you expect to have scored above 19on the exam?5) Troy scored a 25 on the exam. Approximately what percentage ofstudents scored between Troy's score and the mean?6) What percentage of students scored below Troy?

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Answered: Sam scored a 27 on his ACT last back in…

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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An Excel assignment counts for 0-10 points. The scores in a class of 12 students are recorded as follows:1 5 5 6 7 7 8 8 8 9 10 10 What is the deviation of the score 10 from the mean in 13a (recall that this involves a subtraction of the mean from the particular score)? I think I got answer but want to check.
2. The mean of a statistics examination is 77.0. a. If your score is 85, would you prefer the standard deviation to be large or small for purposes of getting a better grade? Why? b. If your score is 69, would you prefer the standard deviation to be large or small? Why?
The college physical education department offered an advanced first aid course last summer. The scores on the comprehensive final exam were normally distributed, and the z-scores for some of the students are shown below. Robert 1.05 Juan 1.51 Haley −1.95 Joel 0.00 Jan −0.67 Linda 1.57 (a) If the mean score was ? = 151 with standard deviation ? = 16, what was the final exam score for each student?
If the mean height of bonsai trees is 52 cm with a standard deviation of 10 cm, what percent of the trees are above 82 cm? Select one: a. 0.3% O b. 82 O c. 3% O d. 0.15% Students at Roseville High School took an IQ test with a mean of 100 and a standard deviation of 15. Approximately, what percent of the students scored above 100? Answer: o represents the
This looks like another problem. Read carefully. Sergio is doing a long hike and is carefully calculating his pack weight. An energy bar has mean weight 1.71 ounces and standard deviation 0.037. The weights of the bars are independent. A juice box has mean weight 7.1 ounces and standard deviation 0.25. The weights of the juice boxes are independent. If he takes 3 energy bars and 5 juice boxes, what will be the MEAN of the total weight in pounds from these items? Hint: If W is the weight in ounces, then W/16 is the weight in pounds.
A successful basketball player has a height of 6 feet 11 inches, or 211 cm. Based on statistics from a data set, his height converts to the z score of 5.17. How many standard deviations is his height above the mean?
The mean of the GRE psychology subject test is 619 (out of 990). The standard deviation is 109. (a) Find the first and third quartiles. Round your answers to the nearest tenth. The first quartile is Answer . The third quartile is Answer (b) What percentage of takers scored between 510 and 728? Answer % (c) What percentage of takers scored between 401 and 619? Answer % (d) What percentage of takers scored above 728? Answer % (e) Suppose I got a 590 on the test. What is my z-score (round to the nearest hundredth)? Answer
Use z scores to compare the given values. The tallest living man at one time had a height of 245 cm. The shortest living man at that time had a height of 60.8 cm. Heights of men at that time had a mean of 173.94 cm and a standard deviation of 6.92 cm. Which of these two men had the height that was more extreme?

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