You have a normal distribution of hours per week that music students practice. The mean of the values is 8 and the standard deviation of the values is 4.

According to the normal distribution, 50% of the music students practice between 5.3 to 10.7 hours each week.

What percentage of students study less than 5.3 hours each week?

A. 12.5%

B. 20%

C. 50%

D. 25%

A step by step explanation would be highly appreciated.

step-by-step explanation:

ok one would be money, and the other would be refreshments or something similar. if each bag of popcorn is 5.00 and each drink is half of that that means drinks are 2.50 the proper way to do that would to look and see how much of each you can buy without exceeding a limit of 30.00

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2

thats one

step-by-step explanation: