Answer: Choice A) 7.6 inches
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Step-by-step explanation:
Check out the diagram below
In that diagram, I've marked the highest and lowest bars with red ink.
- max = 8.4 inches
- min = 0.8 inches
The range is simply the difference of the highest and lowest values
So,
range = max - min
range = 8.4 - 0.8
range = 7.6
The answer is choice A.