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A coin is tossed 3 times. List the possible outcomes. Find the probability of getting at least 2 heads

Solution:

Given, a coin is tossed 3 times.

We have to find the probability of getting at least 2 heads.

When a coin is tossed three times.

The possible outcomes are {TTT, HHH, TTH, THT, THH, HTT, HTH, HHT}

Number of possible outcomes = 8

Favourable outcomes = {THH, HTH, HHT, HHH}

Number of favourable outcomes = 4

Probability = number of favourable outcomes / number of possible outcomes

Probability of getting all heads = 4/8

Therefore, the probability of getting all heads = 1/2

✦ Try This: A coin is tossed 3 times. List the possible outcomes. Find the probability of getting at most 2 tails.

☛ Also Check: NCERT Solutions for Class 10 Maths Chapter 14

NCERT Exemplar Class 10 Maths Exercise 13.3 Problem 25(ii)

Summary:

A coin is tossed 3 times. The possible outcomes are {TTT, HHH, TTH, THT, THH, HTT, HTH, HHT}. The probability of getting at least 2 heads is 1/2

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