Question

a coins is tossed 150 times and it is found that heads coins 115 times 35. if a coin tossed at random what is the probablity of getting 1) head 2) tails

Answer 1

76%of head and 23%of tails

Answer 2

Let ‘A’ be for the event of getting a head, ‘B’ for the event of getting tail.

Provability of A = No. of heads/ total no.of trials

P(A)= 115/150

     =0.77

P(B)=35/150

     =0.22

P(A) +P(B)= 0.77+0.22

              = 0.99