Question 12 Not yet answered Marked out of 1.00 V Flag question Office hours videos, supplementary lectures, module week 6. Suppose that 25% of the people attending a popular gym live within 5 miles of the gym 55% live between 5 and 10 miles from the gym and 20% live more than 10 miles from the gym, Suppose that 30 people are selected at random from the members of the gym' What is the probability that 10 live within 5 miles, 10 live between 5 and 10 miles, and the other 10 live more than 10 miles from the gym? 0 3- 033145 0 b' 0001373087 0 C' 0.7814 0 d' 0.999 Question 13 Suppose random variables X, Y are jointly distributed as f(x,y). Not yet answered Match the following: Marked out of 3.00 Flag question Choose... fox - Mx) /fix,y)dy Choose. J yf (x, y )dydx Choose... Conditional expectation of X given Y Marginal expectation of X Marginal Variance of X Marginal expectation of Y. Previous page Next page Marginal variance of YQuestion 14 W Not yet answered Suppose X is the number of hours it takes for a new pair of blue jeans mail ordered from a store to arrive to customers after ordering, and Y is the time it takes between ordering and the customer trying the new pair of Marked am of jeans. The Jomt denSIty of these two random variables Is 1.00 F Flag f(X. y) = question 1 125000' what is the probability that the time it takes between ordering and the customer trying the new pair of jeans is less than 250 hours? OSxSySSOO Select one or more: C] a. 0.75 I: b. 0.35 I: c. 0.5 I: d. 0.25