Question Tag: Bivariate Data

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  • 1 Marks

QTB – May 2017 – L1 – SA – Q17 – Statistics

This question checks the range of values for the correlation coefficient r.

If is the correlation coefficient calculated for a bivariate data, then which one of the following is correct?

A. r=±
B. −1<r≤1
C. −1<r<1
D. −1≤r<1
E. −1≤r≤1

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  • 1 Marks

QTB – May 2015 – L1 – SA – Q10 – Statistics

Calculating Spearman’s rank correlation between price and age of cars.

The following values are computed from a set of bivariate data relating the price and age of 12 selected cars from a car dealer shop as  where is the difference between ranks of price and age of cars. The computed Spearman’s rank correlation coefficient between the price and age of the car is:

A. -0.4545
B. -0.3535
C. 0.0000
D. 0.3535
E. 0.4545

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  • 1 Marks

QTB – May 2017 – L1 – SA – Q17 – Statistics

This question checks the range of values for the correlation coefficient r.

If is the correlation coefficient calculated for a bivariate data, then which one of the following is correct?

A. r=±
B. −1<r≤1
C. −1<r<1
D. −1≤r<1
E. −1≤r≤1

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  • 1 Marks

QTB – May 2015 – L1 – SA – Q10 – Statistics

Calculating Spearman’s rank correlation between price and age of cars.

The following values are computed from a set of bivariate data relating the price and age of 12 selected cars from a car dealer shop as  where is the difference between ranks of price and age of cars. The computed Spearman’s rank correlation coefficient between the price and age of the car is:

A. -0.4545
B. -0.3535
C. 0.0000
D. 0.3535
E. 0.4545

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