Question

two unbiased coins are tossed simultaneously find probability of getting at least one head ,at most one head, No head

Answer 1

Answer:

probability = possibility of event/ total no. of possibilities

Possibilities=HH HT TH TT

ATLEAST ONE HEAD=3/4(HH HT TH)

AT MOST ONE HEAD= 3/4(HT TH TT)

NO HEAD= 1/4(TT)