Easy way to solve mean

Mean is nothing but average value of set of numbers. Mean almost always refers to arithmetic mean.

Mean = Total of all the elements in a data set / Total number of elements in a data set

The following steps are given below:

Step 1: Find how many elements are there in a set.

Step 2: Find the sum of all the elements in a set.

Step 3: Divide the sum by total number of elements in a set.

Step 4: Final answer is the required mean.

Easy Way to Solve Mean - Examples

Example 1: Solve and find the arithmetic mean value for following data {32, 45, 59, 62, 19, 72, 21, 42, 87}

Solution:

Step 1: Find how many elements are there in a set.

There are 9 elements, so n = 9.

Step 2: Find the sum of all the elements in a set.

32 + 45 + 59 + 62 + 19 + 72 + 21 + 42 + 87 = 439

Step 3: Divide the sum by total number of elements in a set

= Sum of all the element / Total number of elements.

= 439 / 9

= 48.77

Therefore arithmetic mean of given date is 48.77

Example 2: Solve and find the arithmetic mean for following data {21, 42, 63, 74, 56, 46, 57, 68, 79}.

Solution:

Step1: Find how many elements are there in a set.

There are 9 elements, so n = 9.

Step 2: Find the sum of all the elements in a set.

21 + 42 + 63 + 74 + 56 + 46 + 57 + 68 + 79 = 506

Step 3: Divide the sum by total number of elements in a set

= Sum of all the element / Total number of elements.

= 506 / 9

= 56.22

Therefore arithmetic mean of given date is 56.22

Example 3: Calculate the arithmetic mean for following data {14, 29, 37, 43, 26, 52, 62, 71, 24}.

Solution:

Step1: Find how many elements are there in a set.

There are 9 elements, so n = 9.

Step 2: Find the sum of all the elements in a set.

14 + 29 + 37 + 43 + 26 + 52 + 62 + 71 + 24 = 358

Step 3: Divide the sum by total number of elements in a set.

= Sum of all the element / Total number of elements.

= 358 / 9

= 39.77

Therefore arithmetic mean of given date is 39.77

Example 4: Calculate the arithmetic mean for following data {31, 43, 68, 87, 85, 69, 157, 277}.

Step1: Find how many elements are there in a set.

There are 8 elements, so n = 8.

Step 2: Find the sum of all the elements in a set.

31 + 43 + 68 + 87 + 85 + 69 + 157 + 277 = 817

Step 3: Divide the sum by total number of elements in a data set.

= Sum of all the element / Total number of elements.

= 817 / 8

= 102.125

Therefore arithmetic mean of given date is 102.125

Easy Way to Solve Mean - Practice

Solve these practice problems using easy way. These practice problems are very easy to solve

Problem 1: Calculate the arithmetic mean for following data {66, 55, 97, 88, 35, 36, 74, 82}.

Answer: 66.62

Problem 2: Calculate the arithmetic mean for following data {232, 346, 445, 556, 662, 771, 774, 321}.

Answer: 513.375