Maths chapter 15 class 10 {સ્વાઘ્યાય - 15.1 (Ex. - 9,10,11)}

Ex-1 Q.01 to 15

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The sixth class interval for a grouped data whose first two class intervals are 10 - 15 and 15 – 20 is _______.

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Make the following classes continuous . 6-10, 11-15,15-20.

The marks obtained (out of 20) by 30 students of a class in a test are as follows: 14, 16, 15, 11, 15, 14, 13, 16, 8, 10, 7, 11, 18, 15, 14, 19, 20, 7, 10, 13, 12, 14, 15, 13, 16, 17, 14, 11, 10, 20. Prepare a frequency distribution table for the above data using class intervals of equal width in which one class interval is 4-8 (excluding 8 and including 4).

Find class widht of class 10.5 to 15.5

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