A frequency distribution is shown below. Complete parts (a) through (d). The number of televisions per household in a small town Televisions 0 2 3 Households 27 722 1408 1 448 (a) Use the frequency distribution to construct a probability distribution. P(x) X 0 1 2 3 (Round to the nearest thousandth as needed.) (b) Find the mean of the probability distribution. (Round to the nearest tenth as needed.) Find the variance of the probability distribution. 0²: (Round to the nearest tenth as needed.) Find the standard deviation of the probability distribution. 0= (Round to the nearest tenth as needed.)
A frequency distribution is shown below. Complete parts (a) through (d). The number of televisions per household in a small town Televisions 0 2 3 Households 27 722 1408 1 448 (a) Use the frequency distribution to construct a probability distribution. P(x) X 0 1 2 3 (Round to the nearest thousandth as needed.) (b) Find the mean of the probability distribution. (Round to the nearest tenth as needed.) Find the variance of the probability distribution. 0²: (Round to the nearest tenth as needed.) Find the standard deviation of the probability distribution. 0= (Round to the nearest tenth as needed.)
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.4: Discrete Random Variables; Applications To Decision Making
Problem 2E
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Transcribed Image Text:A frequency distribution is shown below. Complete parts (a) through (d).
The number of televisions per household in a small town
Televisions
0
2
3
Households 27
722
1408
(a) Use the frequency distribution to construct a probability distribution.
P(x)
хо
0
1
448
1
2
3
(Round to the nearest thousandth as needed.)
(b) Find the mean of the probability distribution.
(Round to the nearest tenth as needed.)
μ=
Find the variance of the probability distribution.
02
(Round to the nearest tenth as needed.)
Find the standard deviation of the probability distribution.
(Round to the nearest tenth as needed.)
6=
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