1)A,since there are total 47 values in the category of people walking round the trip and the median would be roughly around at the value = 24,which lies in x<=2.
2)C,since people going via public transit in different ranges are:
x<=2 ---2
2<x<=5---18
5<x<=10---30
10<x<=15---26
x>15---37
So here Median = 57,which lies in 10<x<=15
3)A,For round-trip distances <= 10 km, the number of people traveling to work by walking = 30+10+6 = 46 units
For round-trip distances<= 10 km, the number of people traveling to work by bicycling = 34+50+40 = 124 units.No. Of people walking is less than bicycles
4)C,For round-trip distances<= 10 km, the number of people traveling to work by car = 9+20+28 = 57 units
For round-trip distance <=10 km, the number of people traveling to work by public transit = 2+18+30 = 50 units
So,No. Of people travelling by car is greater than public transiters.
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