the use of the pearson's of skewness
if coefficient of skewness is zero then distribution is symmetric or zero skewed.
distinguish between dispersion and skewness
Negative skewness means the average (mean) will be less than the median. Positive skewness means the opposite. I'm not sure if any rule holds for the mode.
When we increase sample size the standard deviation( error) will be decrease and the nagetive skewness is converting to normality. shabirahmad666@rocketmail.com
the use of the pearson's of skewness
if coefficient of skewness is zero then distribution is symmetric or zero skewed.
distinguish between dispersion and skewness
No. Skewness is 0, but kurtosis is -3, not 3.No. Skewness is 0, but kurtosis is -3, not 3.No. Skewness is 0, but kurtosis is -3, not 3.No. Skewness is 0, but kurtosis is -3, not 3.
skewness=(mean-mode)/standard deviation
describe the properties of the standard deviation.
When the data are skewed to the right the measure of skewness will be positive.
Answer this question...similarities and differences between normal curve and skewness
The skewness of a random variable X is the third standardised moment of the distribution. If the mean of the distribution is m and the standard deviation is s, then the skewness, g1 = E[{(X - m)/s}3] where E is the expected value. Skewness is a measure of the degree to which data tend to be on one side of the mean or the other. A skewness of zero indicates symmetry. Positive skewness indicates there are more values that are below the mean but the the ones that are above the mean, although fewer, are substantially bigger. Negative skewness is defined analogously.
Negative skewness means the average (mean) will be less than the median. Positive skewness means the opposite. I'm not sure if any rule holds for the mode.
Skewness is not a characteristic.
Blueness Trueness Skewness