Sam is practising free-throws in basketball. She has a 4/5 chance of scoring each time she shoots from the free-throw line. (You should assume that the probability of scoring for each shot is independent of the result of other attempts.) What is the expected value of the number of free-throws that Sam will score before her first miss? 4/25 What is the variance of the number of free-throws that Sam will score before her first miss? 1/4

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Sam is practising free-throws in basketball. She has a 4/5 chance of scoring each time she shoots from the free-throw line.
(You should assume that the probability of scoring for each shot is independent of the result of other attempts.)
What is the expected value of the number of free-throws that Sam will score before her first miss? 4/25
What is the variance of the number of free-throws that Sam will score before her first miss?
1/4
Transcribed Image Text:Sam is practising free-throws in basketball. She has a 4/5 chance of scoring each time she shoots from the free-throw line. (You should assume that the probability of scoring for each shot is independent of the result of other attempts.) What is the expected value of the number of free-throws that Sam will score before her first miss? 4/25 What is the variance of the number of free-throws that Sam will score before her first miss? 1/4
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