Arandomly selected sample of 100 students had an average grade point average (gpa) of 3.2 with a standard deviation of 0.2.

the standard error of the sample mean is:
a. 0.020
b. 0.200
c. 1.600
d. 2.000

A. 0.020

Step-by-step explanation:

we calculate the standard error of the sample mean with the formula,

,

with E= standard error of the sample mean

s= standard deviation

n= sample

So,

s= 0.2

n= 100

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3

1. perpendicular

2. parallel

3. perpendicular