Question

A sack holds 6 red delicious apples and 9 honey crisp apples. An apple is pulled out of the sack at random and then placed back in the sack.

How many times can you expect that a red delicious apple will be pulled out of the sack in 80 tries?

A.
28

B.
32

C.
40

D.
53

Answer 1

c - 40.
You use probability.
6+9 = 15
There are 6 red delicious apples in the sack.
Since you want to find the probability of pulling a red delicious apple from the sack, you would divide.
6 \frac{6}{15} = .40
.40 out of 1 would be 40 apples.
Since the variables are independent, the probability will be the same each time you pull an apple from the sack.

Answer 2

here are 15 total right? and 6 red compute
615×80 or even
25×80 or even
.4×80
any way you like

Answer 3

40

Answer 4

yes

Answer 5

Each time you draw, you can consider that you get 0.4 of 1 apple. Therefore if you make 80 draws you get 0.4 * 80 = 32 apples.