4. A spinner is divided into 10 equal sections numbered from 1 to 10. You spin the spinner once. What is P(not even)?

Pretty sure the answer is 1/5, if I'm right, please explain how you got 1/5. Thanks

2 answers

there are five even numbers, out of ten.
Pr(even)=5/10=1/2
pr(not even)=1-5/10=5/10=1/2
Wouldn't you get an odd number about half the time?