Question

For the following distributionthe number of students who got marks less than 30 is Marks 0-10 10-20 20-30 30-40 40-50 No. of students 3 9 13 10 5​

Answer 1

Answer:

25

Step-by-step explanation:

f(0-10) + f(10-20) + f(20-30) = 3+9+13 = 25 ans

Answer 2

Answer - 25

Step-by-step explanation:

No. of students got less than 30 - [ (0-10) + (10-20) + (20 - 30) ] = 3+9+13 = 25

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