Answer:
and example hope it helps
378 ft I think this is the answer
Answer: $85,000
Step-by-step explanation:
Given : In a given population of two-earner male-female couples, male earnings have a mean of $40,000 per year and a standard deviation of $12,000.

Female earnings have a mean of $45,000 per year and a standard deviation of $18,000.

If C denote the combined earnings for a randomly selected couple.
Then, the mean of C will be :-

Hence, the mean of C = $85,000
+x on each side. Then -2 on each side. Then divide both sides by 6 and you have your answer
Answer:
0.3%
Step-by-step explanation:
80-50=30
30÷100
=0.3%