FREQUENCY DISTRIBUTION IN ECONOMICS. Frequency refers to the number of times a particular event or information is usually used when data presented are large and most of the numbers may appear more than once. understanding frequency distribution of datas

#### Example of frequency distribution in economics

Represent the marks scored by 30 biology students in SSI by frequency distribution using the following data.

20 8 12 4 18 18 18

20 12 6 18 20 8 2

8 18 12 8 8 18 20

2 20 18 18 20 8 2

4 18

##### solving problems using frequency distribution

Arrange the data in the following manner.

Table 2.10: Marks scored by 30 biology students in SSI

**Score (x) Tally or Counts Frequency**

2 II 2

4 III 3

6 I 1

8 ~~IIII~~ 5

12 IIII 4

18 ~~IIII~~ IIII 9

**BASIC TOOLS FOR ECONOMIC ANALYSIS**

**2.1 PERFORMANCE OBJECTIVES**

At the end of this chapter, students should be able to:

- Define basic economics tools, state their uses and importance
- Construct a frequency table
- Calculate the mean, median and mode of any given set of data.

Calculate the mean of the following sets of numbers:

8, 16, 24, 8, 12, 12, 16, 18, 24, 10, 16, 20, 24, 24, 12, 24, 12, 16, 24, 18, 18.

Solution

**Step I:** Identify the numbers that occur in the set, i.e. 8, 10, 12, 16, 18, 20 and 24. Arrange these numbers in a frequency table (table 2.11).

**Step II:** Arrange the numbers starting from the smallest number, which is 8, to the highest number, which is 24, as shown in table 2.11.

**Step III:** Arrange the figures or numbers

Numbers (X) | Tally or counts | Frequency (f) |

8 10 12 16 18 20 24 | II I IIII III III I | 2 1 4 3 3 1 6 |