CBSE /Class 9
Maths MCQ Based On Presentation of data
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CBSE Class 9 Maths Presentation of data
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Class mark =
Use the scale of the graph
Remember what amount is shown by the lines of tally marks.
First find the total marks of each man and women ,then add both marks and than divide it by the total numbers of man and women in the city.
Recall the presentation of data.
By adding the width to the lower limit of a class you will get the lower limit of the next class or the upper limit of the same class.
Draw the bar graph
Mid value of the class - (class width)/2
use the formula for average
Use scale of the graph
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