Question

Two coins are tossed simultaneously. What is the probability of getting at most one head?

Options

• `1/4`

• `1/2`

• `2/3`

• `3/4`

Answer 1

`3/4`

Explanation:

When two coins are tossed simultaneously, the possible outcomes are HH, HT, TH and TT.

Total number of possible outcomes = 4

Let E be the event of getting at most one head.

Then, the favourable outcomes are HT, TH and TT.​

​Number of favourable outcomes = 3

∴ P(getting at most 1head) = `("Number of favourable outcomes")/"Number of all possible outcomes" = 3/4`