Solution:

D.

REASON:

A deck of cards is given.

Let X be the total number of aces you’ve gotten.

Therefore Expectation of

As a result, the correct answer is (D).

Suppose that two cards are drawn at random from a deck of cards. Let be the number of aces obtained. Then the value of is A. B. C. D.

Solution:

D.

REASON:

A deck of cards is given.

Let X be the total number of aces you’ve gotten.

Therefore Expectation of

As a result, the correct answer is (D).