A recent poll indicated that about 75% of U.S. households had access to a high-speed Internet...
A recent poll indicated that about 75% of U.S. households had access to a high-speed Internet connection.
B. If 10 households are selected randomly, what is the probability that exactly 6 have high-speed access? The probability that exactly 6
households have high-speed access is Answer _____. (Type an integer or decimal. Round to three decimal places as needed.)
C. If 10 households are selected randomly, what is the probability that 6 or fewer have high-speed access?
The probability that 7 or fewer households have high-speed access is Answer ______.
(Type an integer or decimal. Round to three decimal places as needed.)
Homework Answers
This will be a binomial distribution with parameters:
n = 10, p = 0.75
Hence using excel formulas:
b) P(Exacly 6)
= binom.dist(6, 10, 0.75, False)
= 0.146
c) P(6 or fewer)
= binom.dist(6, 10, 0.75, True)
= 0.224
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