Mathematics: 5. If the covariance between the variables x and y is 18 and the variance of x and y are 16 and 81 respectively. Find the coefficient ofcorrelation.

5. If the covariance between the variables x and y

Ответ:

Thekid6556

09.04.2022

Mathematics

The coefficient of correlation=0.5

Step-by-step explanation:

We are given that

Covariance between the variable x and y=18

Variance of x=16

Variance of y=81

We have to find the coefficient of correlation

We know that

Coefficient of correlation

$r=\frac{covariance(x,y)}{\sqrt{variance(x)}\times \sqrt{variance(y)}}$

Using the formula

$r=\frac{18}{\sqrt{16}\times \sqrt{81}}$

$r=\frac{18}{4\times 9}$

r=0.5

Hence, the coefficient of correlation=0.5

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Ответ:

howardc1433

20.09.2021

Mathematics

Step-by-step explanation:

The formula for the area of a parallelogram is the same formula to get the area of a rectangle. In a rectangle, the height is the area divided by base. Therefore, the height of the parallelogram would simply be the area divided by base.

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5. If the covariance between the variables x and y is 18 and the variance of x and y are 16 and 81 respectively. Find the coefficient of
correlation.

Ответ:

Ответ:

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