You have a deck of t trading cards. You give 19 cards to a friend and have 9 left for yourself. How many cards were in the origi
2 answers:
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Answer:
d. 11.6
Step-by-step explanation:
The results of the first die and the second one are independent to each other. The expected value of Z is obtained, therefore, by summing the expected values of both X and Y, because Z = X+Y and X and Y are independent. As a result