If three unbiased coins are tossed simultaneously,(i)Write all possibl

1.	If three unbiased coins are tossed simultaneously,(i)Write all possible outcomes.(ii)Find the probability of getting at least two heads.
Answer» 1)total possible outcomes are 8 (1) When we toss three coins simultaneously then the possible of outcomes are: (HHH) or (HHT) or (HTH) or (THH) or (HTT) or (THT) or (TTH) or (TTT) So, total possible outcomes = 8 (2) Probability of getting at least two heads= 4/8 = 1/2 1. No. of possible outcomes =82 . probability of getting at least two heads=4/8 =1/2

If three unbiased coins are tossed simultaneously,(i)Write all possible outcomes.(ii)Find the probability of getting at least two heads.

Answer»

1)total possible outcomes are 8

(1) When we toss three coins simultaneously then the possible of outcomes are: (HHH) or (HHT) or (HTH) or (THH) or (HTT) or (THT) or (TTH) or (TTT)

So, total possible outcomes = 8

(2) Probability of getting at least two heads= 4/8 = 1/2

1. No. of possible outcomes =82 . probability of getting at least two heads=4/8 =1/2