Question

What is class mark? Explain with example.​

Answer 1

Answer:

The class midpoint (or class mark) is a specific point in the center of the bins (categories) in a frequency distribution table; It's also the center of a bar in a histogram. It is defined as the average of the upper and lower class limits..

Answer 2

Answer:

hope this helps u

Step-by-step explanation:

The average of the values of the class limits for a given class. A class mark is also called a midvalue or central value

calculate by upper limit +lower limit / 2

The class mark of the overlapping class interval 10 – 20

                                                                              = 10+20/2

                                                                                = 15.