For each probability and percentile problem, draw the picture. Let X ~ Exp(0.1).

decay rate =

μ =

Sketch a new graph, shade the area corresponding to P(X 7), and find the probability. (Round your answer to four decimal places.)

Sketch a new graph, shade the area corresponding to the 30th percentile, and find the value. (Round your answer to two decimal places.)

Find the average value of X. (Round your answer to two decimal places.)

Barbara has a good credit history and is able to purchase a car with a low-interest car loan. she co-signs a car loan for her friend jen, who has poor credit history. then, jen defaults on the loan. who will be held legally responsible by the finance company and why? select the best answer from the choices provided. a. barbara will be held legally responsible because she has a good credit history. b. jen will be held legally responsible because she drives the car. c. barbara will be held legally responsible because she is the co-signer. d. jen will be held legally responsible because she has a poor credit history. the answer is a