Question

what is the class size of the frequency distribution ​

Answer 1

Answer:

The classmark is defined as the average of the upper and lower limits of a class. For 5-10, the classmark is (5+10)/2 = 7.5. The class size is the difference between the lower and upper class-limits. Here, we have a uniform class size, which is equal to 5 (5 – 0, 10 – 5, 15 – 10, 20 – 15 are all equal to 5).