Question

Three coins are tossed once. Find the probability of getting atleast 2 heads.

Answer 1

Hi

Three coins are tossed once,. the probability of getting at least 2 heads are as follows :

The possible outcomes are :

HHH, HHT, HTT, THH, TTH, TTT ,THT

as we see in the table

no. of outcomes / total no. of outcomes

therefore 4/8

the answer is 1/2 .

Answer 2

Answer:

Probability of getting atleast 2 head =1/2

Step-by-step explanation:

As we know that :

probability of happening an event = $\frac{favourable\:\:outcome}{total\:\:possible\:\:outcome}$

Total Possible outcome of tossing three coins once = 2³ = 8

these are

• TTT

• TTH

• THT

• ⇒THH

• HTT

• ⇒HTH

• ⇒HHT

• ⇒HHH

Favourable outcomes: for getting atleast two head=4 (shown by arrow)

Probability of getting atleast 2 head =4/8

=1/2