From this data of height of students find the number of students above the height of 169cm. 150, 153, 162, 170, 186, 153, 162, 180, 165, 150, 178, 156, 184, 176, 173, 186, 159, 183, 180, 156.

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Solution

Arrange this data in ascending order of height.
150, 150, 153, 153, 156, 156, 159, 162, 162, 165, 170, 173, 176, 178, 180, 180, 183, 184, 186, 186.

Number of students above the height of 169 = 10
$[1 m a r k]$

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

\begin{matrix} 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 \end{matrix}

(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?

Arrange the given heights of 20 students in grouped distribution with a class interval of 5. The number of students above the height of 169cm is ___ Heights (in cm): 150, 153, 162, 170, 186, 153, 162, 180, 165, 150, 178, 156, 184, 176, 173, 186, 159, 183, 180, 156.

Given below are the heights of 14 students in centimetres. Find the number of students whose height is greater than 169 cm.
150, 150, 153, 153, 156, 156, 159, 162, 162, 165, 170, 173, 176, 178.

Given below are the heights of 20 students in centimetres. Find the number of students whose height is greater than 169 cm.

$\begin{matrix} 150 & 178 153 & 156 162 & 184 170 & 176 186 & 173 153 & 186 162 & 159 180 & 183 165 & 180 150 & 156 \end{matrix}$

Given below are the heights of 20 students in centimetres. Find the number of students whose height is less than or equal to 169 cm.

$\begin{matrix} 150 & 178 153 & 156 162 & 184 170 & 176 186 & 173 153 & 186 162 & 159 180 & 183 165 & 180 150 & 156 \end{matrix}$

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From this data of height of students find the number of students above the height of 169cm. 150, 153, 162, 170, 186, 153, 162, 180, 165, 150, 178, 156, 184, 176, 173, 186, 159, 183, 180, 156.

Arrange this data in ascending order of height. 150, 150, 153, 153, 156, 156, 159, 162, 162, 165, 170, 173, 176, 178, 180, 180, 183, 184, 186, 186. Number of students above the height of 169 = 10 [1 mark]

Arrange this data in ascending order of height.
150, 150, 153, 153, 156, 156, 159, 162, 162, 165, 170, 173, 176, 178, 180, 180, 183, 184, 186, 186.

Number of students above the height of 169 = 10
$[1 m a r k]$