Use the following to answer questions :
The following table lists the probability distribution of the number of HD-TVs owned by all families in a city.
-The standard deviation of the number of HD-TVs owned by these families,rounded to three decimal places,is:
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Q41: In binomial experiments,the outcome called a "success"
Q42: Thirty-two percent of adults did not visit
Q43: The mean of a binomial distribution is
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