Question

In: Statistics and Probability

Of all customers purchasing automatic garage-door openers, 65% purchase a chain-driven model. Let X = the...

Of all customers purchasing automatic garage-door openers, 65% purchase a chain-driven model. Let X = the number among the next 20 purchasers who select the chain-driven model. (Keep four decimals if necessary.)

a. What is the distribution that X follows?

b. Compute P(X > 10).

c. Compute P(6 ≤ X ≤ 10).

d. Compute E(X).

e. Compute V(X)

Solutions

Expert Solution


Related Solutions

Of all customers purchasing automatic garage-door openers, 60% purchase a chain-driven model. Let X = the...
Of all customers purchasing automatic garage-door openers, 60% purchase a chain-driven model. Let X = the number among the next 15 purchasers who select the chain-driven model. (a) What is the pmf of X? h(x; 6, 15, 60) b(x; 15, 0.6) b(x; 15, 0.4) nb(x; 15, 0.6) h(x; 9, 15, 60) nb(x; 15, 0.4) (b) Compute P(X > 12). (Round your answer to three decimal places.) P(X > 12) = (c) Compute P(9 ≤ X ≤ 12). (Round your answer...
Thompson Garage Doors is a company that installs automatic garage door openers. It charges an average...
Thompson Garage Doors is a company that installs automatic garage door openers. It charges an average price of $500 per installation. Variable costsexcluding wages for workers amount to $200 per installation. In addition, you are given the following information about the productivity of the workers: Number of Workers Installations per Week Marginal Product Net Marginal Revenue Product 1 5 2 13 3 18 4 22 5 25 6 27 7 28           a)Complete the table. b)If each worker receives $1400...
In a Function Decomposition Model , The purchasing department of Company X completes a paper purchase...
In a Function Decomposition Model , The purchasing department of Company X completes a paper purchase order and sends it to Supplier A via fax, with a copy going to the accounts payable department of X. Supplier A ships the goods and they arrive at company X’s receiving dock. A clerk at X’s receiving dock completes a paper receiving document describing the goods and sends it to X’s accounts payable department. Supplier A meanwhile sends a paper invoice to X’s...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT