Mathematics, 30.07.2021 03:20 Frankia
Calls to a customer service center last on average 2.3 minutes with a standard deviation of 2 minutes. An operator in the call center is required to answer 76 calls each day. Assume the call times are independent.
What is the expected total amount of time in minutes the operator will spend on the calls each day?
What is the standard deviation of the total amount of time in minutes the operator will spend on the calls each day? Give your answer to four decimal places.
What is the approximate probability that the total time spent on the calls will be less than 166 minutes? Give your answer to four decimal places. Use the standard deviation as you entered it above to answer this question.
What is the value c such that the approximate probability that the total time spent on the calls each day is less than c is 0.95? Give your answer to four decimal places. Use the standard deviation as you entered it above to answer this question.
Answers: 2
Mathematics, 21.06.2019 14:30
Acommunity group sells 2,000 tickets for its raffle. the grand prize is a car. neil and 9 of his friends buy 10 tickets each. when the winning ticket number is announced, it is found to belong to neil's group. given this information, what is the probability that the ticket belongs to neil? a.1/5 b.1/10 c.1/200 d.1/4
Answers: 2
Mathematics, 21.06.2019 18:10
Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180
Answers: 1
Mathematics, 21.06.2019 19:30
When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?
Answers: 2
Mathematics, 21.06.2019 23:00
Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42
Answers: 2
Calls to a customer service center last on average 2.3 minutes with a standard deviation of 2 minute...
English, 05.11.2020 04:30
Mathematics, 05.11.2020 04:30
Mathematics, 05.11.2020 04:30
Mathematics, 05.11.2020 04:30
History, 05.11.2020 04:30
English, 05.11.2020 04:30
Mathematics, 05.11.2020 04:30
Physics, 05.11.2020 04:30
Social Studies, 05.11.2020 04:30
Physics, 05.11.2020 04:30
Mathematics, 05.11.2020 04:30
Chemistry, 05.11.2020 04:30
English, 05.11.2020 04:30