Read each problem carefully. Show your complete solution and presentan illustration for each problem.Answer all the questions with illustration and solution. A group of 500 volunteers recorded an average age of 21.5 years andstandard deviation of 9.6 years. Assumed the distribution is normally1.distributed.Find the number of volunteers with ages less than 20 years.b. Find the number of volunteers with ages greater than 22 years.Find the actual age of Roland if 85.31% of the volunteers are youngerа.c.than him.d.If 2.5% of the volunteers are older than Shirley how old is she?Between what ages is the middle 40% of the volunteers?е.

As per our guidelines, we are allowed to answer only first three sub-parts . Thanks. a) The…

Find the number of volunteers with ages less than 20 years. Find the number of volunteers with ages greater than 22 years. Find the actual age of Roland if 85.31% of the volunteers are younger а. b. с.

Find the number of volunteers with ages less than 20 years. Find the number of volunteers with ages greater than 22 years. Find the actual age of Roland if 85.31% of the volunteers are younger а. b. с.

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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Question

Read each problem carefully. Show your complete solution and present
an illustration for each problem.

Answer all the questions with illustration and solution.

A group of 500 volunteers recorded an average age of 21.5 years and
standard deviation of 9.6 years. Assumed the distribution is normally
1.
distributed.
Find the number of volunteers with ages less than 20 years.
b. Find the number of volunteers with ages greater than 22 years.
Find the actual age of Roland if 85.31% of the volunteers are younger
а.
c.
than him.
d.
If 2.5% of the volunteers are older than Shirley how old is she?
Between what ages is the middle 40% of the volunteers?
е.

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