Introduction You must have observed your teacher recording the attendance of students in your class everyday, or recording marks obtained by you after every test or examination. Similarly, you must
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Recording Data Let us take an example of a class which is preparing to go for a picnic. The teacher asked the students to give their choice of fruits out of banana, apple, orange or guava. Uma is
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Organisation of Data To get the same information which Salma got, Ronald needs only a pen and a paper. He does not need pebbles. He also does not ask students to come and place the pebbles. He pre
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Pictograph A cupboard has five compartments. In each compartment a row of books is arranged. The details are indicated in the adjoining table : &nbs
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Interpretation of a Pictograph Example 3 : The following pictograph shows the number of absentees in a class of 30 students during the previous week : (a) On which day were the maximum numb
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