Three coins are tossed. Find the probability that exactly 2 coins are showing he

Question

Three coins are tossed.

Find the probability that exactly 2 coins are showing heads.

3/8

1/4

2/4

5/8

3.33 points   

QUESTION 28

Three coins are tossed.

Find the probability that all coins landed either heads or all coins landed tails

3/8

1/4

2/4

5/8

3.33 points   

QUESTION 29

Three coins are tossed.

Find the probability that 2 of the 3 coins landed the same way, but not all 3.

3/8

1/4

2/4

3/4

3.33 points   

QUESTION 30

Three coins are tossed.

Find the probability that the first coin that lands is a head.

3/8

1/2

2/4

3/4

3/8

1/4

2/4

5/8

Explanation / Answer

Dear Student

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given That 3 coins are tossed

Therefore sample space is { HHH, HHT, HTH, HTT, THH, THT, TTH, TTT} = 8

Now total number of cases where the outcome consists of 2 heads are HHT, HTH, THH i.e. 3

Therefore favourable outcome = 3

Probability = Favourable outcomes / Sample Space

= 3/8

Option a Solution

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