Formula to Calculate Skewness. 3 24 0125. Frequency density of the first interval 2 5 04 Frequency density of the second interval 7 10 07 Frequency density of the third interval 21 5 42 Frequency density of the fourth interval 15 5 30 Frequency density of the fifth interval 2 10 02.
The area of the bar tells you the frequency.
Here we use three formulas to generate the same results as with the FREQUENCY function. If we look at the first group we can see it has a frequency of 4 and a width of 20 because 20 - 0 20. Relative frequency density relative frequency class width frequency density total number of data relative frequency density relative frequency class width frequency density total number of data. FREQUENCY FREQUENCY DENSITY X CLASS WIDTH.