The students in a class got the following marks in Mathematics and Physics
Find the Kernl Pearson's coefficient of correlation.

Find out Karl Pearson's cofficient of correlation :

The marks obtained in Mathematics and English are as follows. Calculate Spearman's Coefficient of rank correlations.

Seven students of a class secured following marks in economics and history . Calculate cofficient of correlation with the help of these data:

Sum of the squares of deviation from the mean of x series is 136 and that of y series is 13. Sum of the product of the deviations of x and y series from their respective means is 122. Find the Pearson's coefficient of correlation.

For 50 students of a class, regression equation of marks in statistics (x) on marks in Accountancy (y) in 3y-5x+180=0 . The mean in Accoutancy is 44 and the variance of marks in statics is 9/16 of the varience of marks in Accountancy. Find the mean marks in Statistics and coefficient of correlation between marks in two subjects.

Find the Kari Pearson's Coefficient of correlation between x and y for the data

The line of regression marks in economics (X) for marks in mathematics (Y) for a class of 50 students is 3y - 5x+180 = 0. Average score in mathematics is 44 and variance of marks in economics is 9/16th , of variance of marks in mathematics. Find the average score in economics and also the coefficient of correlation between marks in economics and mathematics.

The following table shown the mean and standard deviation of the marks of Mathematics and Physics scored by the students in a school : The correlation coefficient between the given marks is 0.86 . Estimate the likely marks in Physics if the marks in Mathematics are 92 .