Mathematics · Statistics
Using data from 40 counties, it has been calculated that the correlation coefficient (r) between the level of trampoline ownership and the number of neck injuries is 0.75. Which of the following statements is correctly inferred from this information?
- 1There is no statistically significant relationship between the two variables.
- 2Exactly 75% of the variation in the level of neck injuries can be explained by the variation in trampoline ownership.
- 3There is a strong positive relationship between the level of trampoline ownership and the number of neck injuries.✓
- 4High levels of trampoline ownership cause a higher number of neck injuries.
Correct answer
There is a strong positive relationship between the level of trampoline ownership and the number of neck injuries.
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