Question

1. Following are the heights of 10 players.(measured in centimetres)
132, 137, 140, 147, 131, 142, 149, 143, 136, 140.
(a) The height of the tallest player is
(b) The height of the shortest player is
(c) Number of players having height 140cm is
(d) Range for above data is​

Answer 1

Answer:

Height of tallest girl = 151 cm

Height of shortest girl = 128 cm

Range = Height of tallest girl - shortest girl

iv) Mean height = \frac{Sum\ of\ all\ heights}{Number\ of\ girls}  

Number of girls

Sum of all heights

​  

 

= \frac{135\ +\ 150\ +\ 139\ +\ 128\ +\ 151\ +\ 132\ +\ 146\ +\ 149\ +\ 143\ +\ 141}{10}\ =\ \frac{1414}{10}  

10

135 + 150 + 139 + 128 + 151 + 132 + 146 + 149 + 143 + 141

​  

 =  

10

1414

​  

 

= 141.4 cm

Number of girls having more height than the mean height

= 5 girls.

Step-by-step explanation: