Question

iqr
standard deviation
answer bank
this tells us the amount by which the difference in mpg (highway - city) for 21 model year 2020 midsize cars typically varies from the mean difference.
this is the difference between the largest and smallest difference in mpg (highway - city) for 21 model year 2020 midsize cars.
this is the range of the middle half of differences in mpg (highway - city) for 21 model year 2020 midsize cars.

Explanation:

The inter - quartile range (IQR) is the range of the middle half of the data. So for the differences in MPG (highway - city) of 21 mid - size cars, the IQR is the range of the middle half of these differences. The standard deviation measures the amount by which the data typically varies from the mean. So for the MPG differences, it tells us the amount by which the difference in MPG typically varies from the mean difference.

Answer:

IQR: This is the range of the middle half of differences in MPG (highway - city) for 21 model year 2020 midsize cars.
Standard deviation: This tells us the amount by which the difference in MPG (highway - city) for 21 model year 2020 midsize cars typically varies from the mean difference.