Which of the following expressions is correct? A. am + an = amun
C. am. an = amen
B. am. an = am+n
D. am + an = amn
Which of the following is correct?
A. 2-2 = -4
C. a and b
B. b. 2-2 =
1
D. a or b
4​

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 0.45, a standard deviation of 0.001, and margin of error of 0.5% a)0.44 b)0.46 c)0.45