• 13/25 + 10/25 - 3/25
This mathematical sentence can be used to calculate the probability of selecting a student who wants the option to keep studying online or is a boy.
10 girls and 3 boys want the option to keep studying online in total 13.
5 girls and 7 boys don’t want the option to keep studying online in total 12.
Column total- 15, 10, and 25
Which mathematical sentence can be used to calculate the probability of selecting a student who wants the option to keep studying online or is a boy?
• 13/25 + 10/25 - 3/25
• 3/25
• 13/25 X 10/25
• 13/25 + 10/25
1 answer