Orange Line "L" trains from Midway airport to downtown Chicago run every 15 minutes, and the waiting times for trains are uniformly distributed. a) What is the mean waiting time for an Orange Line train? b) Find the probability that a randomly selected passenger waits more than 9 minutes. c) Find the third quartile for waiting times.

abde or 1,2,4, 5 is the answer

step-by-step explanation:

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.

in simplified version   it would be x ≤-4

step-by-step explanation:

multiply each term in x ≤-4 by -1