Answer:
a, b, and c
Explanation:
Generally, correlation measures the strength of the relationship that exists between two variables. A positive correlation means that the two variables have the tendency to either increase or decrease together while a negative correlation means that the two variables tend to move in opposing directions, that is, as one is increasing, the other is decreasing and vice versa.
Now, the researchers find a negative correlation between the amount of weekly exercise and the number of flu symptoms in the subjects. This means that the more the exercise, the lesser the number of flu symptoms and the lesser the exercise per week, the more the flu symptoms. Hence, the assumptions that can be made directly or indirectly from the findings include
- People who exercise more, get sick or have flu less often.
- People who have the flu more are most likely exercising very little or not at all.
- Exercising causes people to be more healthy and less susceptible to the flu.
The correct options are a, b, and c.