18986526
Description
| Question | Answer |
| 52% of the students surveyed were Year 9 students | P(Y9)=0.52 |
| the probability of being Y13 or not playing sport is 94% | P(Y13 OR no sports)=0.94 |
| 84% of the Year 9 students surveyed said that they played at least one sport | P(at least 1 sport|Y9)=0.84 |
| 30% of students are Year9s who play at least one sport | P(Y9 AND at least one sport)=0.30 |
| the probability of a randomly chosen Y13 playing at least 1 sport is 62% | P(at least 1 sport|Y13)=0.62 |
| What percentage of the students surveyed said that they played at least one sport? | P(at least 1 sport)=? |
| what is the probability of either being a Y9, or on the other hand, playing one sport? | P(Y9 OR 1 sport)=? |
| Calculate the percentage of students at the school who play tennis | P(tennis) |
| Is a New Zealand adult more likely to be injured while playing tennis or while playing netball? | P(injured|tennis) --------------------- P(injured|netball) |
| 12% of the injuries obtained were serious | P(serious inj)=0.12 |
| the probability of playing rugby if you are seriously injured is 52% | P(play rugby|serious inj) = 0.52 |
| What proportion of women in the study were not pregnant with twins but were over 30 years old? | P(not pregnant with twins AND over 30)=? |
| A randomly selected woman was found to be pregnant with twins. Calculate the probability she is also over 30 years old | P(over 30|pregnant with twins)=? |
| Calulate the probability of a woman pregnant with twins having diabetes | P(twins AND 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 | P(has diabetes|over 30) -------------------------------- P(has diabetes|under 30) |
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