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"Class mark of the 1st class interval is ___. Class interval is 5 and there are five classes. If the class size is 10 then ___."

It seems to be a statistics problem related to frequency distribution, particularly asking about the class mark (midpoint), class interval, and possibly related calculations.

Would you like me to help with filling in the blanks and solving the related problem? I can guide you through it if you provide more information on the specific numbers involved or explain the question in more detail.

Class mark of the 1st class interval is ___. Class interval is 5 and there are five classes. If the class size is 10 then ___.

Solve the problem involving the class mark of the 1st class interval with a class interval of 5 and a class size of 10. Learn key statistical concepts related to frequency distribution and class mark calculations, suitable for Grades 9-12.

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