25 प्रेक्षणों का प्रसरण (variance) 8 है। यदि प्रत्येक प्रेक्षण को 3 से गुणा किया जाता है, तो परिणामी प्रेक्षणों का नया प्रसरण क्या होगा?

In a moderately skewed distribution, if Mean = 12 and Median = 8, then using Empirical relation (Mode = 3 Median - 2 Mean), what is the value of Mode?

If 4y - 5x = 15 is the regression line of y on x and the coefficient of correlation between x and y is 0.75, what is the value of the regression coefficient of x on y (bxy)?