It is known that 30% of all households still have landlines. If we randomly select 10 households, let X = number that have landlines a) FInd the probability that X = 3. b) Find the mean and standard deviation of X.
It is known that 30% of all households still have landlines. If we randomly select 10 households, let X = number that have landlines a) FInd the probability that X = 3. b) Find the mean and standard deviation of X.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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It is known that 30% of all households still have landlines. If we randomly select 10 households, let X = number that have landlines
a) FInd the probability that X = 3.
b) Find the mean and standard deviation of X.
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