Question

Heights of students of Class X are given in the foloowing frequency distribution:




Height (in cm)

150−155

155−160

160−165

165−170

170−175



Number of students

15

8

20

12

5




Find the modal height.
Also, find the mean height. Compare and interpret the two measures of central tendency. [CBSE 2014]

Answer 1

mode class is 160-165

F1=20

f0=8

F2=12

L=160

now put this all in formula and there is your answer