9514 1404 393
Answer:
0.278
Explanation:
The total number of cars of all colors is ...
10 +7 +4 +5 +9 +1 = 36
Of these, 10 are black cars, so the relative frequency is ...
black cars / total cars = 10/36 = 0.2777777...(repeating)
The relative frequency of black cars is about 0.278.