A bar graph showing the heights of six mountain peaks. When the heights of the given peaks are written in ascending order, what is the average of the middle two peaks?
7850 m
The bar graph displays the heights of six mountain peaks. To find the average of the middle two peaks when the heights are arranged in ascending order, we first need to arrange the given heights in ascending order.
From the bar graph, we can see the heights are approximately:
- Peak A: 7200 m
- Peak B: 8100 m
- Peak C: 7500 m
- Peak D: 8500 m
- Peak E: 7900 m
- Peak F: 7700 m
Arranging these heights in ascending order, we get:
- 7200 m
- 7500 m
- 7700 m
- 7900 m
- 8100 m
- 8500 m
The middle two peaks are 7700 m and 7900 m. To find their average, we sum them and divide by 2:
\(\frac{7700 + 7900}{2} = \frac{15600}{2} = 7800\)
The closest option to 7800m is 7850m. Note that the values read from the graph are approximate; slight variations in reading the bar graph might lead to a slightly different answer. The provided answer is an approximation based on visual interpretation of the graph.
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