2. The probability distribution below shows the random variable and the probability of tossing a die. What is the variance and standard deviation?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 22PFA
Question

solve #2

Solve the following problems put it in word file save it
as PDF file.
1. The probability distribution below shows the number of
typing errors (x) and the probability p(x) of committing
these errors whenever clerks type-in a document.
Compute the variance and standard deviation.
y
1
2
P(y)
0.02
0.11
0.42
0.31
0.10
0.04
2. The probability distribution below shows the random
variable and the probability of tossing a die. What is the
variance and standard deviation?
1
3
4
P(z)
1/6
1/6
1/6
1/6
1/6
1/6
Transcribed Image Text:Solve the following problems put it in word file save it as PDF file. 1. The probability distribution below shows the number of typing errors (x) and the probability p(x) of committing these errors whenever clerks type-in a document. Compute the variance and standard deviation. y 1 2 P(y) 0.02 0.11 0.42 0.31 0.10 0.04 2. The probability distribution below shows the random variable and the probability of tossing a die. What is the variance and standard deviation? 1 3 4 P(z) 1/6 1/6 1/6 1/6 1/6 1/6
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