Looking at the frequency chart, the modal class interval is 15 cm ≤ h < 16 cm as there are 5 pieces of data in this class. Image caption, The time it takes 20 people to run 100 m is recorded.

Get solutions for exercise 13.2 of CBSE Class 10 Mathematics NCERT Exemplar chapter 13. ... No, the assumed mean must not always be the mid-point of the class interval.