Suppose that, based on a sample, the 95% confidence interval for the mean of a population is (61, 85). what was the mean of the sample? A. 77
B. 69
C. 73
D. 81

answer: do we write it

step-by-step explanation:

your question is incomplete, write all the numbers in the sequence that it tells you.  

step-by-step explanation:

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!

answer is because 4×10=40

and 98×4= is 392

40,392