The correct option is
D 6
You know,
Mean = Sum of the observationsNumber of the observations
To find the number of observations, you analyse the number line.
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1112667/original_Screenshot_2021-05-05_at_4.43.41_AM.png)
We can represent miles per gllon as mpg.
The number of vehicles having mileage of 8 mpg is 2 and
the number of vehicles having mileage of 5 mpg is 3.
∴ Sum of observations will be:
=8+8+5+5+5 =
31
Representing by the dot plots, we see:
∴ Mean mileage of the cars is
=5+5+5+8+85
=315
=31×25×2
= 6210
=6.2 mpg.
Estimating 6.2 to the nearest ones, you get 6.
Therefore, the mean mileage of the cars shown in the picture estimated to the ones place is 6 mpg.