Question

Asked Oct 23, 2019

A recent poll indicated that about

83%

of U.S. households had access to a high-speed Internet connection.a. Suppose 100 households were randomly selected from the United States. How many of the households would you expect to have access to a high-speed Internet connection?

b. If

20

households are selected randomly, what is the probability that exactly
12

have high-speed access?c. If

20

households are selected randomly, what is the probability that
12

or fewer have high-speed access?Step 1

**The expected number of households have access to a high-speed Internet connection is obtained below:**

From the given information, the probability that U.S. households had access to a high-speed Internet connection is 83%. Let the random X be the number of U.S. households had access to a high-speed Internet connection.

The required value is,

Step 2

**b.The probability that exactly 12 have high-speed access is obtained below:**

Step 3

**c.The probability that 12 or fewer have high-speed access is ob...**

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