In Mr. Britt's class the distribution of ages of his students has a mean of 115 months and a standard deviation of 3.6 months. If no students leave or join the class, what will be the mean and standard deviation of the distribution of student's ages 4 months later?

the least common denominatore of 7 and 2 is 9

step-by-step explanation:

7+2=9

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

it alot will look like this 4.4

you probably already have the answer but anyways it's b. 15.0

step-by-step explanation:

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have