Question

Construct a frequency distribution of the following data using classes 0-9, 10-19,…so on

Data: 8, 15, 18, 22, 24, 25, 26, 33, 35, 42. The constructed frequency distribution is:

Positively Skewed
		None
		Negatively Skewed
		Symmetric

Answer 1

The frequency distribution of the Data: 8, 15, 18, 22, 24, 25, 26, 33, 35, 42 is tabulated as:

Classes	Frequency
0-9	1
10-19	2
20-29	4
30-39	2
40-49	1

Now to observe the distribution type we can use the histogram plot of the frequency table as:

From the histogram we can see that the curve is approximately bell shaped hence we can assume it as normally distributed.

Thus the constructed frequency distribution is:

Symmetric