The executives at a software company called Front Line are trying to decide if they should continue to provide free coffee in their breakrooms. They have 79 employees and each employee has a 67% chance of drinking coffee in the break room each day. Recall, for a binomial random variable, dbinom(j,n,p) = P(Y = j) and pbinom(j,n,p) 3 P(Y< j). What is the standard deviation of employees who will drink coffee in one day?
The executives at a software company called Front Line are trying to decide if they should continue to provide free coffee in their breakrooms. They have 79 employees and each employee has a 67% chance of drinking coffee in the break room each day. Recall, for a binomial random variable, dbinom(j,n,p) = P(Y = j) and pbinom(j,n,p) 3 P(Y< j). What is the standard deviation of employees who will drink coffee in one day?
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Step 1
Binomial distribution: A discrete r.v. X taking values 0,1,2,3, …., n is said to follow a binomial distribution with parameters n and p if it's p.m.f is given by,
Given,
Sample size = n = 79
Probability of success = p = 67% = 0.67
q = 1-p = 1-0.67 = 0.33
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