c. What is the probability that exactly five of the households in the sampled group have a landline phone service? (Round your answer to 4 decimal places.) X Answer is not complete. Probability d. Given the probability distribution, what is the mean number of households with landline service? (Round your answer to 3 decimal places.) Mean

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.5: Interpreting Data
Problem 1C
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e. What is the variance of the probability distribution of the number of households with landline service? 

c. What is the probability that exactly five of the households in the sampled group have a landline phone service? (Round your answer
to 4 decimal places.)
X Answer is not complete.
Probability
d. Given the probability distribution, what is the mean number of households with landline service? (Round your answer to 3 decimal
places.)
Mean
Transcribed Image Text:c. What is the probability that exactly five of the households in the sampled group have a landline phone service? (Round your answer to 4 decimal places.) X Answer is not complete. Probability d. Given the probability distribution, what is the mean number of households with landline service? (Round your answer to 3 decimal places.) Mean
American households increasingly rely on cell phones as their exclusive telephone service. It is reported that 53.0% of American
households still have landline phone service. We decide to randomly call eight households and ask if the home has a landline phone.
Transcribed Image Text:American households increasingly rely on cell phones as their exclusive telephone service. It is reported that 53.0% of American households still have landline phone service. We decide to randomly call eight households and ask if the home has a landline phone.
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