10th Class Punjab Board Exams Quizzes MCQs Quizzes Punjab Maths Online 10th Class Test Lesson 4 Information Handling

Question:
If the largest observation is 126 and the smallest observation is 20 and if we have to make 10 groups then size of each class interval will be:

Option A):
9
Option B):
11
Option C):
10
Option D):
12

Correct Answer is Option B):
11