Probability Stage 4 - Short Problems

A collection of short Stage 4 problems on probability



Weekly Problem 43 - 2012

Stage: 4 Challenge Level: Challenge Level:1

Weekly Problem 43 - 2012

Weekly Problem 45 - 2012

Stage: 4 Challenge Level: Challenge Level:1

There are 10 girls in a mixed class. If two pupils are selected, the probability that they are both girls is 0.15. How many boys are in the class?