निकटतम सेन्टीमीटरों में मापी गई 50 विद्यार्थियों की लंबाइयाँ निम्नांकित आँकड़े में दर्शाई गई है -
`{:(161,161,151,150,154,158,170,153,159,172,154,162,170),(160,156,168,165,161,152,162,165,153,164,165,166,158),(165,171,159,161,162,154,166,173,158,162,167,154,164),(153,159,161,159,154,160,168,156,162,150,168,,):}`
160-165, 165-170 आदि तरह के वर्ग लेकर इन आंकड़ों की एक वर्गीकृत बारंबारता बंटन सारणी तैयार करें | बताएँ कि
170 सेमी से अधिक लंबाई के कितने छात्र हैं |

The heights (in cm) of 30 students of class VIII are given below: 155,158,154,158,160,148,149,150,153,159,161,148,157, 153,157,162,159,151,154,156,152,156,160,152,147,155,163,155, 157,153 Prepare a frequency distribution table with 160-164 as one of the class intervals.

The heights (in cm) of 30 students of class VIII are given below: 155,158,154,158,160,148,149,150,153,159,161,148,157, 153,157,162,159,151,154,156,152,156,160,152,147,155,163,155, 157,153 Prepare a frequency distribution table with 160-164 as one of the class intervals.

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.

The heights of 30 students of class IX are given below: 158,155,154,158,160,148,150,153,159,161,148,157,162,159,151,154,156,152,156 ,160,152,147,155,163,155,153,157. prepare a frequency distributions table with 150-154 as one of the class intervals.

The heights, to the nearest cm, of 30 men are given below: {:(159, 170, 174, 173, 175, 160, 161, 164, 163, 165), (164, 171, 162, 170, 177, 185, 181, 180, 175, 165), (186, 174, 168, 168, 176, 176, 165, 175, 167, 180):} Using class intervals 155 - 160, 160 - 165, ... draw up a grouped frequency distribution and use this to estimate the Arithmetic mean and standard deviation.

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 What can you conclude about their heights from the table?

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

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 151162 164 171 165 158 154 156 172 160 170153 159 161 170 162 165 166 168 165 164154 152 153 156 158 162 160 161 173 166161 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?

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?