At one college, gpa's have a distribution that is unimodal and symmetric with a mean of 2.9 and a standard deviation of 0.6. what is the range of gpa's from one standard deviation below the mean to one standard deviation above the mean?

a) 2.3 to 2.9
b) 2.9 to 3.5
c) 0.6 to 3.5
d) 2.3 to 3.5

d) 2.3 to 3.5

Step-by-step explanation:

In this problem, we have that:

The mean is 2.9

The standard deviation is 0.6

One standard deviation below the mean

This is the mean subtracted by one standard deviation.

So this is 2.9 - 0.6 = 2.3

One standard deviation above the mean

This is one standard deviation added to the mean.

So this is 2.9 + 0.6 = 3.5

So the correct answer is:

d) 2.3 to 3.5

m∠vru = 80°

m∠urw = 15°

step-by-step explanation:

last one.

step-by-step explanation:

last one.

generally speaking, the others follow some sort of pattern that correlates to either linear (looks like a straight line) or sinusoidal (looks like an s).

the last one is just a random cloud of points that doesn't correlate to any particular known order.