Class interval No. of student 10-25, 2, 25-40, 3 40-55 7 55-70, 6 70-85, 685-100 6Fine the Mean?

Class interval No. of student 10-25, 2, 25-40, 3 40-55 7 55-70, 6 70

1.	Class interval No. of student 10-25, 2, 25-40, 3 40-55 7 55-70, 6 70-85, 685-100 6Fine the Mean?
Answer» nterval Mean Class INTERVAL Frequency DEVIATION 10-25 17.5 2 -30 25-40 32.5 3 -15 40-55 47.5=A 7 0 55-70 62.5 6 15 70-85 77.5 6 30 85-100 92.5 6 45 Mean deviation = 62×(−30)+3×(−15)+6×15+6×30+6×45=6−60−45+90+180+270 =72.5

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Class interval No. of student 10-25, 2, 25-40, 3 40-55 7 55-70, 6 70-85, 685-100 6Fine the Mean? ​

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Class interval No. of student 10-25, 2, 25-40, 3 40-55 7 55-70, 6 70-85, 685-100 6Fine the Mean?