Question

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

Answer 1

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