निम्नलिखित आँकड़ों का बहुलक (mode) 3.5 है। x का मान ज्ञात कीजिए। वर्ग अंतराल: 0-1, 1-2, 2-3, 3-4, 4-5 बारंबारता (Frequency): 1, 3, x, 7, 4

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)?