Question 1 Report
The countries listed in Table X below contributed money as indicated for a joint project in the year 2017. Use the data in the table to answer the questions that follow.
| Country | Amount Contributed |
| A | |
| B | |
| C | |
| D | |
| E |
Represent the data in Table X on a vertical divergent bar graph. (b) State one use of divergent bar graph.
(a) Vertical divergent bar graph
Mean contribution:
\[\bar{x}=\frac{35,000+60,000+45,000+80,000+30,000}{5}=\frac{250,000}{5}=\$50,000\]
| Country | Contribution ($) | Deviation from mean ($) |
|---|---|---|
| A | 35,000 | −15,000 |
| B | 60,000 | +10,000 |
| C | 45,000 | −5,000 |
| D | 80,000 | +30,000 |
| E | 30,000 | −20,000 |
The horizontal zero line represents the mean contribution of \(\$50,000\). Bars above it show contributions above the mean, while bars below it show contributions below the mean.
Scale: vertical scale: 1 cm represents \(\$5,000\) deviation; horizontal scale: equal widths and equal spacing for the countries.
(b) A divergent bar graph is used to show and compare the deviations of values above and below a common mean.
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