Give the probability distribution for the indicated random variable.
?
A fair coin is tossed three times, and we count the number of "runs" that occur. A "run" is defined as a sequence of one or more of the same letter (e.g., HTH is 3 runs, TTH is 2 runs, and TTT is 1 run).
?

A.         

?


B. ?

?


C. ?

?


D. ?

?


E. ?

?



Answer: E

Mathematics

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A.
B.
C.
D.

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