Answer:
Smoking and cases of lung cancer is positive.
Amount of time spent at school each day and the number of texts sent per day is not causal
The number of licks taken and the size of the Tootsie Pop is negative.
Explanation:
1Because as one keeps on smoking the risk of lung cancer increases.
2. Time spent at school has nothing to do with number of texts, so it's not causal.
3. The more one licks the Tootsie Pop the more it decreases.