A box contains 3 blue, 2 white, and 5 red balls. If a ball is drawn at random from the box, what is the probability that it will be red?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 0.5
When every ball is equally likely to be drawn, the probability of an event is the number of favourable outcomes divided by the total number of outcomes.
Total balls \(=3+2+5=10\); red balls \(=5\)
Probability of a red ball \(\displaystyle =\frac{5}{10}=0.5\), since 5 of the 10 equally likely balls are red