Multiple choice

There are $10$ balls numbered from $1$ to $10$ in a box. If one of them is selected at random, what is the probability that the number printed on the ball would be an odd number greater than $4$?

  1. $0.50$
  2. $0.40$
  3. $0.60$
  4. $0.30$
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D Correct answer
Explanation

The balls are numbered 1 to 10. The odd numbers are 1, 3, 5, 7, 9. Those greater than 4 are 5, 7, and 9. There are 3 such balls out of 10, so the probability is 3/10 = 0.30.

AI explanation

The odd numbers greater than 4 in the set from 1 to 10 are 5, 7 and 9, giving 3 favorable outcomes. Using the classical probability formula, we divide the 3 favorable outcomes by the 10 total possible outcomes. This gives a probability of 0.30.

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