A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 50.0 and 52.0 minutes. Find the probability that a given class period runs between 50.25 and 50.75 minutes.

The probability that a given class period runs between 50.25 and 50.75 minutes = 0.25

Step-by-step explanation:

Length of the class = 52 - 50 = 2

The probability density is

The probability that a given class period runs between 50.25 and 50.75 minutes. is calculated by multiplying range with the probability density.

Range = 50.75 - 50.25 = 0.5

Now the probability P (50.25<x<50.75) = 0.5 × 0.5 = 0.25

This is the probability that a given class period runs between 50.25 and 50.75 minutes.

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0

no its the same as every other grade

step-by-step explanation: