A coin was tossed 80 times

MATHEMATICS · Subjective · CBSE · Mathematics · Probability · Probability

Problem

A coin was tossed 80 times. Heads occurred 36 times and Tails occurred 44 times. a) Write

P(\text{Heads})

in simplest form. b) Show that

P(\text{Heads}) + P(\text{Tails}) = 1

for this experiment, and briefly explain why this must always be true in such a two–outcome situation.