Question

if a coin tossed for certain number of times. how many times the coins was tossed,if the porbability of getting a head is 0.4 and it appeared up for 24 times ?​

Answer 1

Number of favourable outcomes = 24

Let the total number of trials be n.

Here, P(E) = Number of favourable outcomes/Total number of trials

                            =>  0.4 = 24/n

                            => 4/10 = 24/n

                            => n/24 = 10/4

                            => n = 10/4 ×24

                            => n = 10×6

                            => n = 60

Thus, the required trials = 60