#### Question

For 10 pairs of observations on two variables X and Y, the following data are available:

`sum(x-2)=30, sum(y-5)=40, sum(x-2)^2=900, sum(y-5)^2=800, sum(x-2)(y-5)=480`

Find the correlation coefficient between X and Y.

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#### Related Questions VIEW ALL [2]

In the following data, one of the values of Y is missing. Arithmetic means of X and Y series are 6 and 8

X |
6 |
2 |
10 |
4 |
8 |

Y |
9 |
11 |
? |
8 |
7 |

(a) Estimate the missing observation.

(b) Calculate correlation coefficient.

Find Karl Pearson’s coefficient of correlation between the variables X and Y for the following data

X | 11 | 7 | 9 | 5 | 8 | 6 | 10 |

Y | 10 | 8 | 6 | 5 | 9 | 7 | 11 |

Solution for question: For 10 pairs of observations on two variables X and Y, the following data are available concept: Statistics - Karl Pearson’s Coefficient of Correlation. For the courses HSC Arts, HSC Commerce, HSC Commerce (Marketing and Salesmanship), HSC Science (Computer Science), HSC Science (Electronics), HSC Science (General)