A coin is tossed 3 times. List the possible outcomes. Find the probability of getting all heads.

1. 1/8

2. 1/6

3. 1/5

4. 2/9

1. 1/8

2. 1/6

3. 1/5

4. 2/9

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Correct Answer – Option 1 : 1/8

Given:A coin is tossed 3 times.

Formula used:P (getting all heads) = (Number of favorable outcomes)/(Total number if outcomes)

Calculation:Total possible outcomes

⇒ (TTT), (TTH), (THT), (HTT), (THH), (HTH), (HHT), (HHH)

The total number of outcomes = 8.

Number of favorable outcomes = (HHH)

P (getting all heads) = (Number of favorable outcomes)/(Total number if outcomes)

⇒ P (getting all heads) = 1/8

∴ The probability of getting all heads are 1/8.