Suppose the scores on a history quiz are normally distributed with a mean of 73 and a standard deviation of 4. which group describes 16% of the population of history quiz scores? a) scores below 65 b) scores below 75 c) scores above 77 d) scores above 81

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

i did it myself and i got 4.2 (b) hope its right

step-by-step explanation: