Mean in Grade VIII

Previously we have discussed about properties of numbers worksheets and Today we will discuss about mean in math which you need to study in grade VIII of indian certificate of secondary education board which can provide you huge help with math. Mean is the average value of any given series. Mean is widely used in statistics. You will be using application of mean in higher class. Mean is very useful whenever you are asked to find the average of any given series. Let's see some examples to have a good idea about mean.(want to Learn more about Mean ,click here),

Example1 find the mean of the given series?

4,5,6,7,8,9

solution : This series contains 6 elements, so number of element = 6

mean= sum of all terms of the series/number of elements

mean = 4+5+6+7+8+9/6

mean=39/6

mean=6.5

So 6.5 is the required mean for this expression.

Mean is very useful and whenever you are asked to calculate the average of any quantity, it will simply give you the average of that particular quantity. We will see an example:

Example 2: find the average marks of Sachin in grade VIII. His marks are as fallows

hindi -67, math-80, english-76, science-76,computer-60.

Solution:

there are 5 subjects, so the series contains 5 elements,

now as we know mean of the series is = sum of all terms of the series/number of elements

mean=67+80+76+76+60/5

mean=359/5

mean=71.8

mean of the all the subjects is 71.8.

As you are seeing that mean is 71.8, so we can say that mean can be an integer or can be a real number

Example 3:Find the mean of the series given below

2,5,7,9,11

Mean of the series will be sum of all the values divide by number of values

There are 5 elements in the series.

Now as we know mean of the series is = sum of all terms of the series/number of element

2+5+7+9+11/5

34/5

6.8 is the mean for given series.

This is all about the Mean of any series. In this article we have dealt briefly about mean. If you still feel any problem with this and other topics like How to tackle eighth standard Algebra you can visit different websites to solve your problems.