Which relationships would most likely be causal? Select two options.

A. A negative correlation between the temperature and the amount of snow still on the ground.

B. A negative correlation between the number of digital photos uploaded to a website and the amount of storage space that is left.

C. A positive correlation between the length of the side of a pool and its depth.

D. A positive correlation between the height of a woman and the height of her brother.

E. A negative correlation between the volume of water in a pot and the amount of time that the water takes to boil.

Answer

a negative correlation between the temperature and the amount of snow still on the ground

a negative correlation between the number of digital photos uploaded to a website and the amount of storage space that is left

Explanation

When it comes to "correlations," a negative one refers to an "inverse" relationship between two variables. So, this means that as one variable increases, the other decreases and vice-versa.

The question is asking for two options that are "casual" (common) when it comes to "negative correlation." So, the answers are:

a negative correlation between the temperature and the amount of snow still on the ground

a negative correlation between the number of digital photos uploaded to a website and the amount of storage space that is left