The given histogram shows the frequency distribution of the speed of cars passing though at a particular spot on a highway. Study the graph and answer the question that follows.
What percentage of cars were running with speed less than 70 km/h?
Answer & explanation
Correct answer: option 4
Total number of cars = 50 + 70 + 85 + 90 + 60 + 45 = 400
Percentage of Cars with speed less than 70 km/h = \(\frac{50 + 70 + 85}{400}\) × 100
= \(\frac{205}{400}\) × 100
= 51.25%