Not all visitors to a certain company's website are customers or potential customers. In fact , the company executives est mate that about 10% of all visitors to the website are looking for other websites. Assume that this estimate is correct and that a random sample of 50 visitors to the website is taken.

(a). Estimate the number of visitors in the sample who actually are looking for the companies website are giving the mean of the revelant distribution . 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 3 decimal places.