Mathematics for IGCSE & O level - Probability (Section 6 - No. 47)

A spinner has 8 equal sections numbered 1 through 8. What is the probability of spinning an odd number?

1/8

1/2

1/4

3/4

There are four odd numbers (1, 3, 5, 7) out of eight total numbers, thus, a probability of 4/8 which simplifies to 1/2.