Question

3. Class intervals in a grouped frequency distribution are given as 4 - 11.12 - 19,20-
27, 28 – 35, 36 - 43. Write the next two class intervals. (1) What is the length of eac:
class interval? (i) Write the class boundaries of all classes. i) What are the class
marks of each class?​

Answer 1

Answer:

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Answer 2

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