Math, asked by jaivir1018, 10 months ago

in a class 15 students, 6students have scored 66 marks each,5 students, have scored 69 marks each and 4 Students have scored 81 marks each. compute the mean marks of the class.

Answers

Answered by namankumar3005

9

Answer:

71

Step-by-step explanation:

6 students x 66marks =396

5 students x 69 marks=345

4 students x 81 marks =324

Add them up=1065

To find mean divide by 15 (students)

Answered by jay272

2

1065/15

71 is the mean

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