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.

(ii) What can you conclude about their heights from the table?

(i) The data with class interval 160-165, 165-170 and so on is represented in the table as:

HEIGHT (In cm) | NO. OF STUDENTS (Frequency) |

150-155 | 12 |

155-160 | 9 |

160-165 | 14 |

165-170 | 10 |

170-175 | 5 |

Total | 50 |

(ii) From the given data, it can be concluded that 35 students that is more than 50% are shorter than 165 cm.

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