Assertion :Since sample space of the experiment, a coin is tossed if it turns up head a die is thrown, is {(H,1),(H,2),(H,3),(H,4),(H,5),T}
∴ Prob of the event {(H,1),(H,2),(H,5)} is 37. Reason: If all the sample points in the sample space of an experiment are pairwise mutually exclusive, equally likely, and exhaustive, then the probability of an event E is defined as
P(E)=NumberofsamplepointsfavourabletotheeventETotalnumberofsamplepointsinthesamplespace