If two coins are

Concept Used:

When n number of coins are tossed together, Sample space = 2ⁿ

When two coins are tossed, sample space = 2² = 4

Explanation:

Sample space = {(H, H), (H, T), (T, H), (T, T)}

(i)

Number of outcomes in which we get exactly two heads = 1 {(H, H)}

(ii)

Getting at least one tails: This means the observations that contain one and more than one tails.

Number of outcomes with at least one tails = 3 {(H, T), (T, H), (T, T)}