Question

From the following data calculate karlpearson method of skeweness. Class= 1 – 3 ,4 – 6 ,7 – 9 ,10 – 13, 14 – 16 ,17 - 19
Freq= 5 ,40, 120, 20, 10, 5​

Answer 1

Answer:

STEP 1 : x x – x (x – x )2. 3 -4 16. 5 2 4. 7 0 0. 9 2 4. 11 4 16. 35. 40 x = ∑x = 35 ... 19. - 3 9. 23 1 1. 26 4 16. 110. 30 x = ∑x = 110 = 22 n 5. STEP 2 : ... skewness : 9 , 6 , 5 , 11 , 13 , 12 , 14.