Question

A game of chance consist of spinning an arrow which comes to rest pointing at one of the numbers 1,2,3,4,5,6,7,8 and these are equally likely outcomes. What is the probability that it will point at 8? An odd number? A number greater than 2? Or a number less than 9?

Answer 1

1. 1/8
2. 4/8= 1/2
3. 6/8 = 3/4
4. 8/8 = 1

Answer 2

1) favourable outcomes =1
total outcomes =8
p(e)= 1/8
2) favourable outcomes =4
total outcomes =8
p(e). =4/8. = 1/2
3) favourable outcomes= 6
total outcomes= 8
p(e).= 6/8.= 3/4
4) favourable outcomes =8
total outcomes =8
p(e). =8/8.= 1