Question

This spinner has 3 possible outcomes - white, grey or black.

Janet says that 1 of the 3 outcomes is black so the probability hat the arrow will stop on black is 1/3.
Is Janet correct, why?

Answer 1

No, Janet is incorrect because the black has a greater surface area than the other two; the amount of space in not equal between all three possible outcomes. (The probability she will land on black is closer to 1/2 than 1/3)