Question

three coins are tossed once.find the probability of getting atleast two heads.

Answer 1

if u have three coins so draw a sample sketch
first coin. second coin. third coin
H. H. H
T. H. H
H. T. H
T. T. T
H. H. T
T. H. T

now possible no.of outcomes are HHH,THH,HTH,HHT

SO,P=POSSIBLE NO. OF OUTCOMES/TOTAL NO.OF OUTCOMES

P=4/6
P=.66