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Not all visitors to a certain company's website are customers or potential customers.

Not all visitors to a certain company's website are customers or potential customers. In fact, the company's executives estimate that about  of all visitors to the website are looking for other websites. Assume that this estimate is correct and that a random sample of   visitors to the website is taken.
a. Estimate the number of visitors in the sample who actually are looking for the company's website by giving the mean of the relevant distribution (that is, the expectation of the relevant random variable). Do not round your response.
b. Quantify the uncertainty of your estimate by giving the standard deviation of the distribution. Round your response to at least three decimal places.

Please pay close attention to the problem and be sure your answer is
correct.
visitors to the website is taken.
Estimate the number of visitors in the sample who actually are looking
for the company's website by giving the mean of the relevant
distribution (that is, the expectation of the relevant random variable).
Do not round your response.
Quantify the uncertainty of your estimate by giving the standard
deviation of the distribution. Round your response to at least three
decimal places.

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