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# The heights of 50 students, measured to the nearest centimetres, have been found to be as follows: (i) Represent the data given above by a grouped frequency distribution table,

Q. 4.     The heights of 50 students, measured to the nearest centimetres, have been found to be as follows:

161         150         154         165         168         161         154         162         150         151

162         164         171         165         158         154         156         172         160         170

153         159         161         170         162         165         166         168         165         164

154         152         153         156         158         162         160         161         173         166

161         159         162         167         168         159         158         153         154           159

(i) Represent the data given above by a grouped frequency distribution table, taking the class intervals as 160 - 165, 165 - 170, etc.

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The highest recorded height of a student is 173 cm.

The lowest recorded height of a student is 150 cm.

The class intervals would therefore be 150 -155, 155 - 160, 160 - 165, 165 - 170, 170 - 175

The representation of the given data in the form of a grouped frequency distribution table is as follows. Exams
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