The values of different types of accounts held in Nigerian banks for the period 1984 to 1988 Year 1984 1985 1986 1987 1988 Savings 100 120 120 180 200 Curre...
Question 1 Report
The values of different types of accounts held in Nigerian banks for the period 1984 to 1988
| Year | 1984 | 1985 | 1986 | 1987 | 1988 |
| Savings | 100 | 120 | 120 | 180 | 200 |
| Current | 65 | 75 | 70 | 100 | 130 |
| Fixed deposit | 40 | 45 | 60 | 145 | 50 |
Present the data above in the form of a component bar chart.
Answer Details
A component (stacked) bar chart uses one vertical bar for each year, and each bar is divided into segments whose heights represent Savings, Current and Fixed-deposit balances. The total height of a bar equals the sum of the three accounts for that year.
Step 1: find the total height of each bar
| Year | Savings | Current | Fixed deposit | Total (bar height) |
|---|---|---|---|---|
| 1984 | 100 | 65 | 40 | 205 |
| 1985 | 120 | 75 | 45 | 240 |
| 1986 | 120 | 70 | 60 | 250 |
| 1987 | 180 | 100 | 145 | 425 |
| 1988 | 200 | 130 | 50 | 380 |
Step 2: the cumulative segment boundaries (stack Savings at the bottom, then Current, then Fixed deposit):
| Year | Savings segment | Current segment | Fixed-deposit segment |
|---|---|---|---|
| 1984 | 0 to 100 | 100 to 165 | 165 to 205 |
| 1985 | 0 to 120 | 120 to 195 | 195 to 240 |
| 1986 | 0 to 120 | 120 to 190 | 190 to 250 |
| 1987 | 0 to 180 | 180 to 280 | 280 to 425 |
| 1988 | 0 to 200 | 200 to 330 | 330 to 380 |
Step 3: draw the chart. On the horizontal axis mark the five years (1984 to 1988) with equal spacing; on the vertical axis mark values from 0 to at least 425 using a scale such as 1 cm to 50 units. For each year draw one bar of equal width up to its total height, then partition it at the boundaries above. Shade the three components differently (for example plain for Savings, hatched for Current, dotted for Fixed deposit) and add a key. Title the chart "Types of accounts held in Nigerian banks, 1984 to 1988".
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