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MTEL General Curriculum Mathematics Practice
The first histogram shows the average life expectancies for women in different countries in Africa in 1998; the second histogram gives similar data for Europe:
How much bigger is the range of the data for Africa than the range of the data for Europe?
Range is the maximum life expectancy minus the minimum life expectancy.
Are you subtracting frequencies? Range is about values of the data, not frequency.
It's a little hard to read the graph, but it doesn't matter if you're consistent. It looks like the range for Africa is 80-38= 42 years and for Europe is 88-64 = 24; 42-24=18.
Read the question more carefully.
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