1. 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 distributed. 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. c. nan him. d. If 2.5% of the volunteers are older than Shirley how old is she? e. Between what ages is the middle 40% of the volunteers?
1. 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 distributed. 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. c. nan him. d. If 2.5% of the volunteers are older than Shirley how old is she? e. Between what ages is the middle 40% of the volunteers?
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...
Related questions
Question
Read each problem carefully. Show your complete solution and present
an illustration for each problem.
Answer d and e questions with illustration and solution.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, probability and related others by exploring similar questions and additional content below.Recommended textbooks for you
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON