Four independent flips of a fair coin are made. Let X denotethe number of heads obtained. Plot the probability mass function ofthe random variable X-2
ediculeN
Answered question
2021-01-19
A fair coin is flipped four times in a row independently. Let X denote the number of heads obtained. Plot the probability mass function ofthe random variable
Answer & Explanation
izboknil3
Skilled2021-01-20Added 99 answers
four coins are flipped ; the no.of possible out comesare =
those are like(HHHH)(HHHT)(HHTH).............(TTTH)(TTTT)
THE NO.OF HEADS 'X' IS 0,1,2,3,4
SO THE PROB.MASS FUNCTION OF 'X' IS
-----------------------------------------
LET 'Y' =
'Y' TAKES VALUES 2,1,0,-1,-2
PROB.MASS FUNCTION OF
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