No. of possible outcomes while tossing a coin = 2 {1 head & 1 tail}

Probability = (No.of favorable outcomes)/(Total no.of possible outcomes)

P(getting head) = 1/2

P(getting tail) = 1/2

Since probability of two events are equal, these are called equally like events. Hence, tossing a coin is considered to be a fair way of deciding which team should choose ends in a game of cricket.