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1) Below is a distribution for number of visits to a dentist in one year. 1 3 X=# of visits to a dentist P(X) .1 .3 .4 .15 .05 What is the expected value of X? What does this mean in context? What is the standard deviation of X? 4-

1) Below is a distribution for number of visits to a dentist in one year. 1 3 X=# of visits to a dentist P(X) .1 .3 .4 .15 .05 What is the expected value of X? What does this mean in context? What is the standard deviation of X? 4-

MATLAB: An Introduction with Applications
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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please help answer 1&2 im struggling please
1) Below is a distribution for number of visits to a dentist in one year. 0 1 2 3 4 X=# of visits to a dentist P(X) .1 .3 .4 .15 .05 What is the expected value of X? What does this mean in context? What is the standard deviation of X? 2) An insurance company charges $900 annually for auto policies for teenagers. The policy specifies the company will pay $1,500 for a minor accident and $8,000 for a major accident. The probability of a teenager having a minor accident during the year is 0.15, and of having a major accident is 0.05. Let X represent the amount that the insurance company pays out to a customer during the year. a) Make a table showing the distribution of X. P(X = x) b) What is the expected value of X? c) What does that mean for the insurance company? d) What is the standard deviation of X?
Transcribed Image Text:1) Below is a distribution for number of visits to a dentist in one year. 0 1 2 3 4 X=# of visits to a dentist P(X) .1 .3 .4 .15 .05 What is the expected value of X? What does this mean in context? What is the standard deviation of X? 2) An insurance company charges $900 annually for auto policies for teenagers. The policy specifies the company will pay $1,500 for a minor accident and $8,000 for a major accident. The probability of a teenager having a minor accident during the year is 0.15, and of having a major accident is 0.05. Let X represent the amount that the insurance company pays out to a customer during the year. a) Make a table showing the distribution of X. P(X = x) b) What is the expected value of X? c) What does that mean for the insurance company? d) What is the standard deviation of X?
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