Advertisements
Advertisements
Question
Find Skp for the following set of observations.
17, 17, 21, 14, 15, 20, 19, 16, 13, 17, 18
Advertisements
Solution
`sum"x"_"i"` = 17 + 17 + 21 + 14 + 15 + 20 + 19 + 16 + 13 + 17 + 18 = 187
Here, n = 11
Mean = `(sum"x"_"i")/"n"`
= `(187)/(11)`
= 17
Mode = Observation that occurs most frequently in the data
= 17
Skp = `("Mean"-"Mode")/"S.D."`
= `(17-17)/"S.D."`
= `0/"S.D."`
= 0
APPEARS IN
RELATED QUESTIONS
For a distribution, mean = 100, mode = 127 and SD = 60. Find the Pearson coefficient of skewness Skp.
The mean and variance of the distribution is 60 and 100 respectively. Find the mode and the median of the distribution if Skp = – 0.3.
For a distribution, mean = 100, mode = 80 and S.D. = 20. Find Pearsonian coefficient of skewness Skp.
For a distribution, mean = 60, median = 75 and variance = 900. Find Pearsonian coefficient of skewness Skp.
For a frequency distribution, the mean is 200, the coefficient of variation is 8% and Karl Pearsonian’s coefficient of skewness is 0.3. Find the mode and median of the distribution.
Calculate Karl Pearsonian’s coefficient of skewness Skp from the following data:
| Marks above | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 |
| No. of students | 120 | 115 | 108 | 98 | 85 | 60 | 18 | 5 | 0 |
Find Skp for the following set of observations:
18, 27, 10, 25, 31, 13, 28.
