Researchers asked questions in 1001 randomly selected adults in Russia. We found a statistically significant, strong positive correlation between income and the number of recycling bins filled their houses per week (r = 0,77). Choose the best interpretation of the result.

1. The sample is too small to allow us to draw any conclusions about the relationship between income and recycling in Russia.

2. We can not conclude that economic comfort causes more recycling because this type of research design does not allow us to infer a causal relationship.

3. ........

Question

Researchers asked questions in 1001 randomly selected adults in Russia. We found a statistically significant, strong positive correlation between income and the number of recycling bins filled their houses per week (r = 0,77). Choose the best interpretation of the result. 
  
1. The sample is too small to allow us to draw any conclusions about the relationship between income and recycling in Russia. 

2. We can not conclude that economic comfort causes more recycling because this type of research design does not allow us to infer a causal relationship. 

3. ........

anonymous · Answer

3. The results show that the highest income affects people so as to recycle more than those with lower income.

anonymous · Answer

any ideas please??

tkhunny · Answer

Correlation dot NOT imply Causation - EVER!  This mistake is how most Junk Science is created.

anonymous · Answer

@tkhunny  yes i know it but unfortunately this is a common big mistake in science!!!. personally i believe the correct answer is 2. what do you think?

tkhunny · Answer

1. Sample is pretty good.
3. There is no inference available.

Has to be 2.

anonymous · Answer

yes...sample is very big.. so no other choice available..