The marks obtained by the students in Mathematics, Physics and Chemistry in anexamination are normally distributed with the means 52, 50 and 48 and withstandard deviations 10, 8 and 6 respectively. Find the probability that a studentselected at random has secured a total of (i) 180 or above and (ii) 135 or less.

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Answered: The marks obtained by the students 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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Assume that adults have IQ scores that are normally distributed with a mean of 98 and standard deviation of 15. Find the probability that a randomly selected adult has an IQ greater than 104.
The average age of the JYP employees is known to be 32 years and the standard deviation is 5 years. Find the probability that a random sample of 36 employees will have an average age of less than 30 years. What is the probability of 36 employees who have an average age of less than 30 years?
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