Question

The height of 6 friends in class 5 are - 150cm,155cm,140cm,150cm,145cm,140cm.
a.Find the average height.
b.How many children are taller than the average height? How many are shorter than the average height?​

Answer 1

Answer:

Question :-

The height of 6 friends in class 5 are - 150cm,155cm,140cm,150cm,145cm,140cm.

a.Find the average height.

b.How many children are taller than the average height? How many are shorter than the average height?

Answer:-

a)

• The average height is 146.67 cm.

b)

• Three children are taller than the average height.
• Three children are taller than the average height.

To find :-

• Average height

Solution:-

a)

$\boxed{ \large{average = \frac{sum \: of \: observations}{number \: of \: observations} }}$

$\implies \: average = \frac{150 + 155 + 140 +150 + 145 + 140}{6} \\ \\ \implies \: average = \frac{880}{6} \\ \\ \implies \: average =146.67$

Hence,

The average height is 146.67 cm.

b)

Three children are taller than the average height.

Three children are shorter than the average height.

Answer 2

Answer:

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