免费数学和统计视频供学习！

作者：Jagdish Chawla

若要測試此功能，請造訪即時網站。

Correlation

Welcome! Have a look around and watch the videos.

Correlation

1 2			最近活動

If r(x, y) = 0.5, Cov(x, y) = 16, and Var(y) = 36, find the standard deviation of x Maths Platter	0	0	3月25日

For series of x : 7, 6, 5, 4, 3, 2, 1 and series y : 1, 2, 3, 4, 5, 6, 7, find the coefficient of correlation Maths Platter	0	0	3月25日

For series of x : 2, 5, 7, 8, 6, 9 and series y : 6, 15, 21, 24, 18, 27, find the coefficient of correlation Maths Platter	0	0	3月25日

The covariance between two variables x and y is 72. The variances of x and y are 144 and 81. What is the coefficient of correlation Maths Platter	0	0	3月25日

The covariance between two variables x and y is 60. The standard deviation of x and y are 10 and 12. What is the coefficient of correlation Maths Platter	0	0	3月25日

If the standard deviation of x and y are the reciprocals each other. What is the coefficient of correlation without unit of measurement Maths Platter	0	0	3月25日

For x : 7, 6, 5, 4, 3, 2, 1 and y : 1, 2, 3, 4, 5, 6, 7, what is the coefficient of correlation Maths Platter	0	0	3月25日

If r(x, y) = 0.5, Cov(x, y) = 16, and Var(y) = 36, find the standard deviation of x Maths Platter	0	0	3月25日

For the bivariate data x : 2, 5, 7, 8, 6, 9 and y : 6, 15, 21, 24, 18, 27, what is the coefficient of correlation Maths Platter	0	0	3月25日

The covariance between two variables x and y is 72. The variances of x and y are 144 and 81. What is the coefficient of correlation Maths Platter	0	0	3月25日

The covariance between two variables x and y is 60. The standard deviation of x and y are 10 and 12. What is the coefficient of correlation Maths Platter	0	0	3月25日

What is the rank correlation coefficient if the sum of the squares of differences in ranks of marks of 10 students in two subjects is 33 Maths Platter	0	0	3月25日

For x: 2,3,5,4,7 and y: 4,6,7,8,100 with r = 0.93, find r for u: 12,13,15,14,17 and v: 10,12,13,14,1 Maths Platter	0	0	3月25日

If cov(x, y) = 25, then what is the relation between standard deviation of x and y Maths Platter	0	0	3月25日

What is the correlation coefficient between x and y if x and y are variables related by 3x + 7y - 20 = 0 Maths Platter	0	0	3月25日

If r(x, y) = 0.60 and u = 3x + 5, v = 5y - 7, find the correlation coefficient between u and v Maths Platter	0	0	3月25日

If r(x, y) = 0.92 and u = 3x - 5, v = -4y + 7, find the correlation between u and v Maths Platter	0	0	3月25日

If for the pairs of correlated values, the number of concurrent deviation is 0, then what is the coefficient of concurrent deviation Maths Platter	0	0	3月25日

If for the 9 pairs of values, the number of concurrent deviations is 4, then what is the coefficient of concurrent deviation Maths Platter	0	0	3月25日

The coefficient of rank correlation for 10 pairs of values was found to be 0.6. Later it was found that the difference of the pair was taken Maths Platter	0	0	3月25日

If for the 10 pairs of the values, the number of concurrent deviation was found to be 4, what is the value of the coefficient of concurrent Maths Platter	0	0	3月25日

If the rank correlation coefficient for 10 pairs of values is 0.6, what is the sum of the squares of differences in the ranks Maths Platter	0	0	3月25日

If r(x, y) = 0.87 for x: 1,3,5,8,9,10 and y: 3,4,8,10,12,11, find r(u, v) for u: 3,9,15,24,27,30 and v: 6,8,14,20,24,22 Maths Platter	0	0	3月25日

What is the sum of the squares of differences in rank if the rank correlation coefficient for 10 pairs of the values is 0.4 Maths Platter	0	0	3月25日

What is the rank correlation coefficient if the sum of the differences in ranks of marks of 10 students in two subjects is 39 Maths Platter	0	0	3月25日

Compute the rank correlation coefficient for the given two series of the ranks Maths Platter	0	0	3月25日

For 6 pairs, rank correlation is -0.36, but a difference of 2 was taken instead of 3. Find the correct rank correlation coefficient Maths Platter	0	0	3月25日

For 10 pairs, rank correlation was 0.6, but a difference of 6 was taken instead of 4. Find the correct rank correlation coefficient Maths Platter	0	0	3月25日

If the number of concurrent deviations is 9 and the coefficient of concurrent deviations is √0.8. What is the number of pairs of values Maths Platter	0	0	3月25日

For 9 pairs of values, the number of concurrent deviation is 4. What is the value of coefficient of concurrent deviation Maths Platter	0	0	3月25日

1 2

“统计学是科学的语法。”

卡尔·皮尔逊

​免费数学和统计视频供学习！

Correlation

If r(x, y) = 0.5, Cov(x, y) = 16, and Var(y) = 36, find the standard deviation of x

For series of x : 7, 6, 5, 4, 3, 2, 1 and series y : 1, 2, 3, 4, 5, 6, 7, find the coefficient of correlation

For series of x : 2, 5, 7, 8, 6, 9 and series y : 6, 15, 21, 24, 18, 27, find the coefficient of correlation

The covariance between two variables x and y is 72. The variances of x and y are 144 and 81. What is the coefficient of correlation

The covariance between two variables x and y is 60. The standard deviation of x and y are 10 and 12. What is the coefficient of correlation

If the standard deviation of x and y are the reciprocals each other. What is the coefficient of correlation without unit of measurement

For x : 7, 6, 5, 4, 3, 2, 1 and y : 1, 2, 3, 4, 5, 6, 7, what is the coefficient of correlation

If r(x, y) = 0.5, Cov(x, y) = 16, and Var(y) = 36, find the standard deviation of x

For the bivariate data x : 2, 5, 7, 8, 6, 9 and y : 6, 15, 21, 24, 18, 27, what is the coefficient of correlation

The covariance between two variables x and y is 72. The variances of x and y are 144 and 81. What is the coefficient of correlation

The covariance between two variables x and y is 60. The standard deviation of x and y are 10 and 12. What is the coefficient of correlation

What is the rank correlation coefficient if the sum of the squares of differences in ranks of marks of 10 students in two subjects is 33

For x: 2,3,5,4,7 and y: 4,6,7,8,100 with r = 0.93, find r for u: 12,13,15,14,17 and v: 10,12,13,14,1

If cov(x, y) = 25, then what is the relation between standard deviation of x and y

What is the correlation coefficient between x and y if x and y are variables related by 3x + 7y - 20 = 0

If r(x, y) = 0.60 and u = 3x + 5, v = 5y - 7, find the correlation coefficient between u and v

If r(x, y) = 0.92 and u = 3x - 5, v = -4y + 7, find the correlation between u and v

If for the pairs of correlated values, the number of concurrent deviation is 0, then what is the coefficient of concurrent deviation

If for the 9 pairs of values, the number of concurrent deviations is 4, then what is the coefficient of concurrent deviation

The coefficient of rank correlation for 10 pairs of values was found to be 0.6. Later it was found that the difference of the pair was taken

If for the 10 pairs of the values, the number of concurrent deviation was found to be 4, what is the value of the coefficient of concurrent

If the rank correlation coefficient for 10 pairs of values is 0.6, what is the sum of the squares of differences in the ranks

If r(x, y) = 0.87 for x: 1,3,5,8,9,10 and y: 3,4,8,10,12,11, find r(u, v) for u: 3,9,15,24,27,30 and v: 6,8,14,20,24,22

What is the sum of the squares of differences in rank if the rank correlation coefficient for 10 pairs of the values is 0.4

What is the rank correlation coefficient if the sum of the differences in ranks of marks of 10 students in two subjects is 39

Compute the rank correlation coefficient for the given two series of the ranks

For 6 pairs, rank correlation is -0.36, but a difference of 2 was taken instead of 3. Find the correct rank correlation coefficient

For 10 pairs, rank correlation was 0.6, but a difference of 6 was taken instead of 4. Find the correct rank correlation coefficient

If the number of concurrent deviations is 9 and the coefficient of concurrent deviations is √0.8. What is the number of pairs of values

For 9 pairs of values, the number of concurrent deviation is 4. What is the value of coefficient of concurrent deviation

免费数学和统计视频供学习！