Practice30Create account

A data set has continuous classes of width 5 starting at 0: 0-5, 5-10, 10-15, ... The class mark of one bar is 27.5.
Which class interval has this class mark?

Class 8Bar Graphs and HistogramsData Handling
  • A25-30
  • B20-25
  • C27-28
  • D30-35

Step-by-Step Solution

Class mark = means lower + upper = 55. With width 5, the interval is 25-30.
Answer: A) 25-30

Master this chapter in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Bar Graphs and Histograms practice questions

More Class 8 Bar Graphs and Histograms practice

A histogram with unequal class widths must use which quantity for bar height so that…A histogram of weights (kg) of 80 students shows class 40-50 with the tallest bar at…A histogram of waiting times (minutes) at a bank has classes 0-5, 5-10, 10-15, 15-20…Two histograms of the same 100 marks are drawn, one with class width 10 and one with…A class collected the daily temperatures of a city for a month (30 days), grouped as…