If the angle between two lines of regression is 90°, then correlation coefficient is:

When two judges rank only two individuals, the value of Spearman’s rank correlation coefficient is:

For three random variables \(X_1, X_2\) and \(X_3\), correlation coefficients between pairs are \(r_{12} = \sin^2\theta\), \(r_{13} = \cos\theta\), and \(r_{23} = \sin\theta\). The partial correlation coefficient \(r_{12,3}\) is given by:

Data sets with high kurtosis:

Karl Pearson’s correlation coefficient is also called:

For how many days were the number of road accident patients treated less than 4?

Number of Road Accident Patients Treated by a Hospital Emergency Ward

For 120 days, the number of road accident patients treated in the hospital's emergency ward is given below:

In a pie chart depicting total expenses of a company for the year 2016, raw material had a central angle of 45°. If total expenses were Rs 504 Lakhs, what were the company's expense on raw materials (in Rs lakhs)?

Find the mode from the following table.

Class and Frequency Table

The following data shows the class and frequency distribution:

Find P(A'/B'), given P(A) = 3/4, P(B) = 9/20 and P(A∩B) = 1/4? 

In the case of two variables. the estimated regression equation is ŷ = 60 + 5x. The total sum of squares is 15730 and the sum of squares due to error is 1530. The estimated regression line based on this information is a ______.

If the angle between two lines of regression is 90°, then correlation coefficient is:

When two judges rank only two individuals, the value of Spearman’s rank correlation coefficient is:

For three random variables \(X_1, X_2\) and \(X_3\), correlation coefficients between pairs are \(r_{12} = \sin^2\theta\), \(r_{13} = \cos\theta\), and \(r_{23} = \sin\theta\). The partial correlation coefficient \(r_{12,3}\) is given by: