Question

Consider an experiment of tossing an unbiased coin three times. What is the probability of obtaining four heads?​

Answer 1

Answer:

0

Step-by-step explanation:

no of time the coin tossed: 3

no of favourable outcome : 4 heads

no of posible out come : 0

because we can only get three heads if we toss three times

to get four heads we have to toss the coin four times

here the possible outcomes are

-- HHH, TTT, HTH, HTT, THT, THH.

Answer 2

Answer:

1/2

Step-by-step explanation:

Given: coin tossed three times

To find: the probability of getting more that one head

Sol: The sample space is {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT}, n(S)=8

The favourable outcomes for getting more than one head is {HHH, HHT, HTH, THH}, n(E)=4

Hence, the probability of getting more that one head is

n(E) /n(S) =4/8=1/2