The amount of time that a customer waits on hold at a call center can be modeled by a uniform distribution on the interval from 0 seconds to 120 seconds. A) Draw a density curve to model the amount of time that a randomly selected customer waits on hold. Be sure to include scales on both axes.
B) About what percent of the time does a customer have to wait between 100 and 120 seconds?

25

step-by-step explanation:

she gotta workk that a 2

step-by-step explanation:

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4