Question

which relationships would most likely be causal? select two options.
□ 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
□ a positive correlation between the length of the side of a pool and its depth
□ a positive correlation between the height of a woman and the height of her brother
□ a negative correlation between the volume of water in a pot and the amount of time that the water takes to boil

Explanation:

• For the first option: Higher temperatures cause snow to melt, so there is a causal relationship between temperature and the amount of snow on the ground.
• For the second option: Uploading more digital photos (cause) uses up storage space (effect), so there is a causal relationship.
• For the third option: The length of the side of a pool and its depth are not causally related. A pool can have various side lengths and depths independently.
• For the fourth option: A woman's height and her brother's height are related through genetics (a common factor) but not in a direct causal way (one does not cause the other).
• For the fifth option: The volume of water in a pot and the time it takes to boil are related, but other factors like heat source intensity also play a role. It's not a simple direct - causal relationship as described (assuming a constant heat source, more water takes longer to boil, but the problem statement doesn't specify controlled conditions).

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