For each example below, determine whether a positive, negative, or no cause and effect relationship exists. 1) smoking and cases of lung cancer. 2) amount of time spent at school each day and number of text sent per day 3) the number of licks taken and the size of the tootsie pop

A positive relation between two things means that they are proportional to each other. One affects the other thing.

1) Smoking and cases of lung cancer. This is positive. As smoking affects lungs and can cause lung cancer. So, with increased smoking comes the increased risk of lung cancer thus increasing cases of lung cancer.

2) Amount of time spent at school each day and number of text sent per day - These two events are independent of each other. They are not based on each other. Hence, no relationship here.

A negative relation implies that if one thing increases, the other decreases.

3) The number of licks taken and the size of the Tootsie Pop. This is negative. As the number of licks increases, the size of the pop decreases.

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