Practicing Success
The given histogram shows the frequency distribution of the speed of cars passing through a particular spot on a highway. Read the graph and answer the following question. The number of cars with speed (km/h)in the interval (60 — 70) km/h is what percentage less than the number of cars with speed (km/h)in the interval (70 — 80) km/h? (correct to one decimal place) |
5.9% 5.6% 7.5% 8.6% |
5.6% |
Number of cars with speed b/w 60& 70 km/h = 85 Number of cars with speed b/w 70& 80 km/h = 90 Required percentage = \(\frac{90 - 85}{90}\) × 100 = \(\frac{5}{90}\) × 100 = 5.6% |