?Televisions In the Sullivan Statistics Survey I, individuals were asked to disclose the number of televisions in their household. In the following pro
Chapter 6, Problem 17(choose chapter or problem)
Televisions In the Sullivan Statistics Survey I, individuals were asked to disclose the number of televisions in their household. In the following probability distribution, the random variable X represents the number of televisions in households.
(a) Verify this is a discrete probability distribution.
(b) Draw a graph of the probability distribution. Describe the shape of the distribution.
(c) Determine and interpret the mean of the random variable X.
(d) Determine the standard deviation of the random variable X.
(e) What is the probability that a randomly selected household has three televisions?
(f) What is the probability that a randomly selected household has three or four televisions?
(g) What is the probability that a randomly selected household has no televisions? Would you consider this to be an impossible event?
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