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Class intervals in a grouped frequency d...

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.

What are the class marks of each class?

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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. Write the class boundaries of all classes

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