Answer the question regarding the probability mass function described. Two fair dice are rolled. Let the random variable X be the sum of the values shown on the two dice, and define a probability mass function 
(a) State the range of X. (b) Find f(7).
A. (a) {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}
(b) f(7) = P(X = 7) = 
B. (a) {1, 2, 3, 4, 5, 6}
(b) f(7) = P(X = 7) = 1
C. (a) {1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36}
(b) f(7) = P(X = 7) = 
D. (a) {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}
(b) f(7) = P(X = 7) = 
Answer: A
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A. $51,200,000,000,000 B. $51,211,000,000,000 C. $51,210,000,000,000 D. $51,000,000,000,000
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A. center (3, 3); radius = 4
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. At what times will the ball be 
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