Question

The height of 10 students are as follows (in cm) :- 150, 128, 135, 139, 151, 132, 149, 146, 143, 141.​

Answer 1

Answer:

Solution:

i) Height of tallest girl = 151 cm

ii) Height of shortest girl = 128 cm

iii) 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

v) Number of girls having more height than the mean height

= 5 girls.

Step-by-step explanation:

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