when three coins are tossed the probability distribution for the random variable X representing the number of heads that accure what is the variance of the probability distribution
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Answer:
0,1,2,3
Step-by-step explanation:
sample space= {HHH,HHT,HTH,THH,TTH,THT,HTT,TTT}
0 heads =1/8
1 heads= 3/8
2 heads= 3/8
3 heads = 1/8
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