gas mileage (miles/gallon) - cars

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18 19 20 21 22

gas mileage (miles/gallon) - SUVs
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21 22 23 24 25

the dot plots show the gas mileage for randomly selected cars and SUVs which data values do both distributions have in common?

The data value in common for both distributions with the lowest number is
BLANK.
the data value in common for both distributions for the highest number is BLANK.

The data values in common for both distributions are:

The data value in common for both distributions with the lowest number is 21.
The data value in common for both distributions with the highest number is 22.