Question

marks obtained by 70 students are given below marks 20 70 50 60 75 90 40 number of students 8 12 18 6 9 5 12​

Answer 1

Answer:

first we have to multiply marks got buy no of students

(20×8)+(70×12)+(50×18)+(60×6)+(75×9)+(90×5)+(40×12)

160+840+900+360+675+450+480/70

3865/70

I hope this is correct answer

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