Question

Three unbiased coins are tossed together. Find the probability of getting:

(a) All heads

(b) Two heads

(c) Atmost two heads

(d) Getting a head and tail alternately​

Answer 1

Answer:

d. getting a head and tail alter ately

Answer 2

Answer:

a.1/8

b: 3/8

c: 7/8

Step-by-step explanation:

S:- (TTT, TTH, THT, THH, HTT, HTH, HHT, HHH)

NOW ACC. TO EVENTS DECIDE PROBABILITY

(a). all heads:- (HHH)

(b). two heads:- (THH,HTH,HHT)

(c) atmost two heads :- all except HHH