At a customer service call center for a large company, the number of calls received per hour is normally distributed with a mean of 140 calls and a standard deviation of 5
calls. What is the probability that during a given hour of the day there will be between
133 calls and 137 calls, to the nearest thousandth?

answ5

step-by-step explanation:

u have to pay atttion to me

let's first notice, the center of the hyperbola is at the origin, since the focus points are equidistantly 3 units away from the origin, that also means that the distance "c" from the center to either focus is 3.

it should also be notable that, the traverse axis for this hyperbola is vertical, or namely over the y-axis and therefore, the positive fraction will be the one with y-variable.

the traverse "a" component or distance from the center to either vertex is not 2, is more than 2, so we can safely put it at √5 ≈ 2.24.