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 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 (in cm) of 30 students of class VIII are given below: 150,152,154,152,148,149,150,155,159,160,152,154,160,149,150,152,155,145,154,145,148,153,155,150,160,154,152,149,152,148. Prepare a frequency table with 160-164 as one of the class intervals

The heights (in cm) of 9 students of a class are 148,144,152,155,160,147,150,149,145. find the median height.

The heights (in cm) of 9 students of a class are as follows: 155, 160, 145, 149, 150, 147, 152, 144, 148 Find the median of this data.

The heights (in cm) of 9 students of a class are as follows: 155, 160, 145, 149, 150, 147, 152, 144, 148 Find the median of this data.

The heights (in cm) of 9 students of a class are as follows: 155 160 145 149 150 147 152 144 148 Find the median of this data.

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 (in cm) of 35 students of a class are given below : {:("Height (in cm)",157,152,153,154,155,156),("Number of students",7,4,3,5,9,7):} Find the median height.

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.