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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

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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.

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