(a) An online shop advertises that it will deliver the products ordered within 3 to 4 days. The manager wanted to check the accuracy of the number of days needed to deliver the products to customers and prepare the following probability distribution table. Number of Days 1 2 3 4 5 6 7 P(X) 0.24 0.2 k 0.14 0.02 0.01 (i) (ii) (iii) (iv) Solve for k. Compute the probability that a delivery will be on time. Compute the probability that a delivery will be late. Compute the standard deviation of the distribution X.
(a) An online shop advertises that it will deliver the products ordered within 3 to 4 days. The manager wanted to check the accuracy of the number of days needed to deliver the products to customers and prepare the following probability distribution table. Number of Days 1 2 3 4 5 6 7 P(X) 0.24 0.2 k 0.14 0.02 0.01 (i) (ii) (iii) (iv) Solve for k. Compute the probability that a delivery will be on time. Compute the probability that a delivery will be late. Compute the standard deviation of the distribution X.
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section9.4: Expected Value
Problem 20E
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