Question

Suppose spin a spinner with eight equal sectors, numbered 1 to 8. What is the probability of spinning a 3 or an 8

Answer 1

there are 8 numbers and you want to get either a 3 or an 8

 3 or 8 is 2 numbers out of the 8

 so you have a 2/8 reduced to a 1/4 probability of getting them.