Question

Three coins are tossed simultaneously 200 times with the following frequencies of different outcomes



a) find the probability of 2 heads.
b)More than 2 heads coming up.​

Answer 1

Total number of chances = 23 + 72 + 77 + 28 = 200

Number of chances of coming 2 heads = 72

therefore P( coming 2 heads)= 514 / 642 = 9 / 25