Math Help? Check my answers.
posted by Allison .
1. A spinner is divided into 10 equal sections numbered from 0 to 10. You spin the spinner once. What is P(divisible by 3)?
1/3
1/2
2/5
3/10**
2. A bag contains 7 green marbles, 9 red marbles, 10 orange marbles, 5 brown marbles, and 10 blue marbles. You choose a marble, replace it, and choose again. Find P(red, then blue).
77/164
19/41
90/1681**
45/41

looks good to me.
except the spinner sections are numbered 110, not 010.