Question No: (2 ). [ Marks 4 $5 =20] a) Find geometric mean of the following data: x 8 10 12 141618 F48 158 5 1 b) Calculate the coefficient of correlation between x and y for the following data. X12345 6 7 8 9 y 12 1 1 13 15 14 17 16 19 10 c) Prepare a histogram and a frequency of polygon from the following data: Class 0-6 6-12 12-18 18-2424-3030-36 Frequency 4 8 15 20 12 d') What is scatter diagram? Write its merits and demerits. e) Calculate standard deviation for the following: Values 10 20 30 40 50 60 70 Frequency 1 5 12 22 179 4