10.The heights of children in a school are normally distributed withmean of 113 CM and a standard deviation of 5 CM. A child is selectedrandomly. What is the maximum height in CM of the low 7 percent ofstudents.a) 109.5b) 116.5c) 105.6d) Non of the answer is correcte) 120.4

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Answered: 10. The heights of children in a school…

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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35) The mean score of a college entrance test is 500, the standard deviation is 75. The score normally distributed. What percent of the students scored below 320? A) 50.82% B) 34.13% C) 7.86% D) 0.82%
2. A statistic test has a mean of 78 and a standard deviation of 6. a) What is the z-score of a student who scored 89 on the test? b) What is the z-score of a student who scored 64 on the test? c) What is the z-score of a student who scored 78 on the test? d) What is the score of a student whose z-score is 1.24? e) What is the score of a student whose z-score is -.31? f) What is the score of a student whose z-score is -1? 3. For males in a certain towWn, the systolic blood pressure is normally distributed with a mean of 135 and a standard deviation of 8. a) What is the probability that a randomly selected male's systolic blood pressure will be greater than 143? b) What is the probability that a randomly selected male's systolic blood pressure will be less than 119?
Consider the data set A (2,5,5,5,6,8) A) find the mode, median and mean. B) use the computation formula the compute the standard deviation
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4) The percentage relative error is A) E, = 10 E, B) E, = 100 E, C) E, = E, D) E, = Ea
IQ scores are from a Normal distribution with a mean of 100 and a standard deviation of 15. What IQ scores has a z-score of 1.20? Group of answer choices A.) 106 B.) 95 C.) 118 D.) 82
1. Scores on a particular test are normally distributed in the population, with a mean of 100 and a standard deviation of 15. What percentage of the population has scores: a) between 100 and 125? b) between 82 and 106? c) between 110 and 132? d) above 132? e) equal to 132? Answer: A)45.25 B)54.03 C)23.48 D)1.66 E)0
7) At one college, GPA's have a distribution that is unimodal and symmetric with a mean of 2.6 and a standard deviation of 0.5. What is the range of GPA's from one standard deviation below the mean to one standard deviation above the mean? A) 2.6 to 3.1 B) 2.1 to 3.1 C) 0.5 to 3.1 D) 2.1 to 2.6
a standarized reading exam has a mean score of 80 with standard deviation =12. the distribution of scores i normal. Find the percentage of test takers who got: a) under 80 b) between 68 and 92 c) over 100 d) over 25 e) what is the 40th percentile?
Diastolic blood pressures are assumed to follow a normal distribution with a mean of 85 and a standard deviation of 12. What proportion of people has diastolic blood pressures less than 80? A)0.661 B)0.338 C)0.50 D)0.75
The scores of the students in the final examination are normally distributed with a mean of 75 and a standard of 5. Find the percentage of students who scored between 73 and 83? A 44.52% B) 60.06% c) 28.98% D) 15.54%
The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 55 ounces and a standard deviation of 6 ounces.Use the Empirical Rule, finda) 99.7% of the widget weights lie between and b) What percentage of the widget weights lie between 43 and 73 ounces? %c) What percentage of the widget weights lie above 49 ?

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10. The heights of children in a school are normally distributed with mean of 113 CM and a standard deviation of 5 CM. A child is selected randomly. What is the maximum height in CM of the low 7 percent of students. a) 109.5 b) 116.5 c) 105.6 d) Non of the answer is correct e) 120.4