Answer:
The mean of the sampling distribution of sample proportions will be 0.2
Step-by-step explanation:
Central Limit Theorem for Proportions:
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean
and standard deviation 
20% of American adults ages 25 and older had never been married.
This means that 
So the mean of the sampling distribution of sample proportions will be 0.2
Mmm i don’t know sorry ok
Answer:
$777.60
Step-by-step explanation:
8/100 = 0.08
0.08 * 720 = 57.6
57.6 + 720 = 777.6
Answer:
1)50.24 2) 254.34
Step-by-step explanation:
1000 x 8% = 80
so you would get 80 dollars extra a year times 10 years
80 x 10 = 800
1000 + 800 = $1800
so at the end of the ten years you will have $1800