Question

following marks are obtained by 25 students in maths test in class Vl of a school : 9,17,12,20,9,18,25,17,19,9,12,18,17,19,20,25,9,12,17,19,19,20,9 what is the range of marks ? (range= maximum mark -minimum mark) which mark is occurring more frequently​

Answer 1

Answer:

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