52% of the students surveyed were Year 9 students

the probability of being Y13 or not playing sport is 94%

84% of the Year 9 students surveyed said that they played at least one sport

30% of students are Year9s who play at least one sport

the probability of a randomly chosen Y13 playing at least 1 sport is 62%

What percentage of the students surveyed said that they played at least one sport?

what is the probability of either being a Y9, or on the other hand, playing one sport?

Calculate the percentage of students at the school who play tennis

Is a New Zealand adult more likely to be injured while playing tennis or while playing netball?

12% of the injuries obtained were serious

the probability of playing rugby if you are seriously injured is 52%

What proportion of women in the study were not pregnant with twins but were over 30 years old?

A randomly selected woman was found to be pregnant with twins.

Calculate the probability she is also over 30 years old

Calulate the probability of a woman pregnant with twins having diabetes

Compare the risk of developing gestational diabetes for a pregnant woman who is over 30 years old with the risk for a pregnant woman who is not over 30 years old