Question

Bella measured the heights of corn stalks in centimeteres. The height are 81,88,69,65,87. What is the mean height of bellas corn stalks

Answer 1

Given:

The height of Bella's corns stalks are 81, 88, 69, 65, 87 in centimeters.

To find:

The mean height of Bella's corn stalks.

Solution:

Data values are 81, 88, 69, 65, 87.

Sum of all data values is

$\sum x_i= 81+ 88 + 69 + 65 + 87$

$\sum x_i= 390$

Number of data values (n) = 5

We know that,

$Mean=\dfrac{\sum x_i}{n}$

$Mean=\dfrac{390}{5}$

$Mean=78$

Therefore, the mean height of Bella's corn stalks is 78 centimeters.