Math, asked by shreyashinde2707, 2 months ago

The heights in centimetres of 30 children are given below. Prepare a frequency

table and find their mean height.

135 137 130 135 137 140 135 137 132 135

140 135 131 139 140 140 138 136 137 135

132 131 130 134 135 140 138 137 136 131​

Answers

Answered by xXMIHIRXx
4

Step-by-step explanation:

Minimum height =131cm

Maximum height =156cm

Range =156−131=25

Number of classes =4

Class range =425=6.25 approx 6

class 1=131+6=137

class 2=137+6=143

class 3=143+6=149

class 4=149+6155

class 5=155+6=161

Class interval                     Frequency

131−137                              9

137−143                              3

143−149                              2

149−155                              4

155−161                              2

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