The probability a telesales represenative making a sale on a customer call is .15. Find the...

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The probability a telesales represenative making a sale on acustomer call is .15. Find the probability: 1. Her first sale comesafter 5 calls. 2. Her first 5 calls went with out a sale. What isthe probability she will have to make no more than 13 calls untilher first sale? 3. Less than 2 sales are made on 5 callsRepresenatives are required to make an average of at least 4 salesa day or they are fired. 4. Find the least number calls therepresenative is required to make a day so not to be fired. 5.Compute the variance for the number sales made in a day if shemakes the minimum number of call to keep her job.

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SOLUTIONFrom given dataThe probability a telesales represenative making a sale on acustomer call is 015Let X number of calls to make r salesp psales on a callp 015 and q 1p 1 015 0851 Her firstsale comes See Answer

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