Question

The two largest cable providers are Comcast Cable Communications, with 21.5 million subscribers, and Time Warner Cable, with 11.0 million subscribers (The New York Times Almanac, 2007). Suppose that the management of Time Warner Cable subjectively assesses a probability distribution for the number of new subscribers next year in the state of New York as follows.
x f(x)
100,000 ........ .10
200,000 ........ .20
300,000 ........ .25
400,000 ........ .30
500,000 ........ .10
600,000 ........ .05
a. Is this probability distribution valid? Explain.
b. What is the probability Time Warner will obtain more than 400,000 new subscribers?
c. What is the probability Time Warner will obtain fewer than 200,000 new subscribers?


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  • CreatedSeptember 20, 2015
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