The length of a movie falls on a normal distribution. About 95% of movies fall between 75 minutes and 163 minutes. Required:

a. What is the mean value for average movie length in minutes?

b. What is the value of the standard deviation for average movie length in minutes?

idk

step-by-step explanation:

use that smart brain

536

step-by-step explanation:

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.