Answer:
11 now brain list
Step-by-step explanation:
Answer:
3.8
Step-by-step explanation:
3(-7.9)-5(-5.5)
3.8
Hope this helps!

a. "Chocolate" and "Adults" (whatever those mean) will be independent as long as

"Chocolate" has the marginal distribution given by the second column, with a total probability of

. Similarly, "Adults" has the marginal distribution described by the third row, so that

. Then

Meanwhile, the joint probability of "Chocolate" and "Adults" is given by the cell in the corresponding row/column, with

.
The probabilities match, so these events are indeed independent.
Parts (b) and (c) are checked similarly.
b. Yes;


c. Yes;

So if two is fifty, divide it by two to get twenty five, multiply that by three to get seventy five. 3x=75