Question

Q2: A researcher collected the following information for two variables x and y
No. of pairs = 20, r=0.5, mean of X is 15, mean of Y is 20, standard deviation of X is 4.
standard deviation of Y is 5.
Later on it was found that one pair of value as been wrongly taken as (X = 16, Y = 30) whereas
the correct values were (X=26, Y = 35). Find the correct value of r? ​

Answer 1

Answer:

ok thanks

Step-by-step explanation:

normalized covariance: Corr(X,Y) = Cov(X,Y) / σXσY . The correlation of a pair of random variables is a dimensionless number, ranging between +1 and -

Answer 2

Step-by-step explanation:

I hope it will be correct

Thank You❣️