hard · SAT Math
A survey of 200 commuters recorded each commuter's primary mode of transport and whether the commuter holds a monthly pass. Of the 60 bus commuters, 40 hold a pass and 20 do not. Of the 80 train commuters, 48 hold a pass and 32 do not. Of the 60 car commuters, 12 hold a pass and 48 do not. In total, 100 commuters hold a pass and 100 do not.
If one commuter who does not hold a monthly pass is selected at random, what is the probability that this commuter's primary mode of transport is the bus?
- 0.10
- 0.20
- 0.30
- 0.33
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