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(17) Case study Based- I(18)Marks obtained by 100 students of a class - 9" in anexamination. Out of 50 are given below.Marks0-1010-2020-3030-4040-50No. of1215242821Students(1)What will be the upper limit of Third Class interval.(a)10 (b) 20(c) 30(d) 40(2) What will be the class mark of 4th Class interval(a)25 (b) 35(c) 45(d) 55​

Answer»

Answer:

1.(a) 30

2.(B)35

Step-by-step EXPLANATION:

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