2. A bookstore sells books for $2, $3, $5, and $10. Let random variable X = "amount of money for one book." Look at the relative-frequency table below representing the amount of money spent on one Item and the relative frequencies with which customers purchase them: x P(X = x) 2 .55 3 .26 5 .11 10.08 If the expected amount of money spent by a customer is $3.23, what is the standard deviation? O o = 2.20 o = 1.80 o= 3.47 o = 2.01 O O
2. A bookstore sells books for $2, $3, $5, and $10. Let random variable X = "amount of money for one book." Look at the relative-frequency table below representing the amount of money spent on one Item and the relative frequencies with which customers purchase them: x P(X = x) 2 .55 3 .26 5 .11 10.08 If the expected amount of money spent by a customer is $3.23, what is the standard deviation? O o = 2.20 o = 1.80 o= 3.47 o = 2.01 O O
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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Transcribed Image Text:2. A bookstore sells books for $2, $3, $5, and $10. Let random variable X = "amount of money for one book."
Look at the relative-frequency table below representing the amount of money spent on one Item and the relative frequencles with which customers purchase them:
x P(X = x)
2 .55
3 .26
5 .11
10.08
If the expected amount of money spent by a customer is $3.23, what is the standard deviation?
O o = 2.20
O o = 1.80
O o = 3.47
O o = 2.01
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