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What is a sample correlation?

Anonymous

∙ 10y ago

Updated: 11/1/2022

If measurements are taken for two (or more) variable for a sample , then the correlation between the variables are the sample correlation. If the sample is representative then the sample correlation will be a good estimate of the true population correlation.

Wiki User

∙ 10y ago

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Continue Learning about Math & Arithmetic

What term defined as the size of the association between two variables independent of the sample size?

There is no such term. The regression (or correlation) coefficient changes as the sample size increases - towards its "true" value. There is no measure of association that is independent of sample size.

Is there negative correlation between weight and distance walked on an average day?

That's a question that can only really be answered via a study. Take a random sample of people (from your school for example) and plot their weight against their average daily walking distance (you may have to make your subjects carry a pedometer during the study period). Do you see a negative relationship on the graph?As a second step, calculate the correlation coefficient. As negative correlation gets stronger the correlation coefficient will get closer to -1.

What is a Correlation coefficient of 0.00457?

Evidence that there is no correlation.

What are the trends of a line?

They can be positive correlation, negative correlation or no correlation depending on 'line of best fit'

Is -0.0001 a correlation coefficient?

Yes it can be a correlation coefficient.

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