Elmentary Math for Teachers II
posted by Tracy on .
A spinner containing 8 numbers is spun. What is the probability of the event that the spinner
A.) lands on an odd number?
B.)lands on a number divisible by 3?
C.)does not land on 5,6, or 7?
D.)lands on a number less than 4?

there are 8 possibilities, so count up how many mean success, and divide by 8.
For example, there are 4 odd numbers, so the chance of hitting one is 4/8 = 1/2