Answer:
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 138
Average = 32.6 inch
Population variance,

We have to find a point estimate for the population variance of the height.
The point estimate for the population variance is the population variance itself.

Thus, the point estimate of population variance is the population variance that is 2.8.
Answer:
x = 71°
Step-by-step explanation:
because the triangle shown in the image is an isosceles if the top angle is 38 the sum of other two angles must be 142 which is ,if divided by 2, makes 71
Answer:
a=6,-10
Step-by-step explanation:

Answer:it’s $18.63
Step-by-step explanation:
($45+.15($45)).36