Question

Two different coins are tossed simultaneously. The probability of getting at least one head is

विकल्प

• \[\frac{1}{4}\]

• \[\frac{1}{8}\]

• \[\frac{3}{4}\]

• \[\frac{7}{8}\]

Answer 1

When two coins are tossed simultaneously, all possible outcomes are HH, HT, TH, TT.
∴ Total number of outcomes = 4
The favourable outcomes are HH, HT, TH.
So, the favourable number of outcomes are 3.
∴ P(getting at least one head) = \[\frac{\text{ Favourable number of outcomes }}{\text{ Total number of outcomes }} = \frac{3}{4}\]