Question

Three coins are tossed together. Find the probability of getting at least one heads.​

Answer 1

Answer:

the probability of getting at least one head is 87.

Answer 2

Answer:

The possible outcomes when three coins are tossed together are

{HHH,TTT,THT,TTH,HHT,HTH,THH,HTT}. Therefore, the number of possible outcomes when two coins are tossed is 8.

Now, the possible outcomes of getting at least one head are {HHH,THT,TTH,HHT,HTH,THH,HTT}, which means the number of favourable outcome is 7.

Therefore, probability P of getting at least one head is:

P=

8

7

Hence, the probability of getting at least one head is

8

7

.

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