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what kind of correlation would you expect to find between a city's annual and the size of its population
The correlation between cricket chirps and the temperature is very approximate.
A car moving at a constant speed (no acceleration) will be defined as V= D/T where V= velocity, D= distance, and T= time. rearranging you could also see: D= VT or T=D/V.
I would expect a positive correlation. The hotter it is, the more people want to cool down with an ice cream bar. This means that as the temperature goes up, so does the number of ice cream bars that people choose to buy.
I would expect a mild negative correlation. Girls tend to have smaller feet and so smaller shoe sizes and they tend t o score better at school.
A correlation coefficient close to 0 makes a linear regression model unreasonable. Because If the correlation between the two variable is close to zero, we can not expect one variable explaining the variation in other variable.
Things may be correlated without causal relationship or conversely. Consider the Modulus function - that is the value of a number without regard to its sign. Over any domain (-a,a), there is a very strict relationship between x and mod(x), but their correlation is 0. Conversely, I expect that there is a good correlation between my age and the number of TV sets in the world. That is not to say that my getting older is producing more TVs or that TV production is causing me to age. Simply that both of them are correlated to a third variable - time. There can be correlation without such a third variable but, offhand, I cannot think of an example.
It is a 642 mile so expect about a 10 hour drive.
It would be a bit nippy.
You will expect to find that you do not have enough information.
Due to the circumstances surrounding your asking of that question here and now, whatever you may expect would bear only a coincidental correlation with the reality of the answer.(You can expect to hear from me whenever you please to, but expecting won't make it so.)
what can you expect from yourself