Mean Average Calculator

Introduction to mean average calculator:

Mean or average of a list of number can be defined as a sum of all of the number and divide it by the total number of items. In statistics, there are three types of mean ,

1) Arithmetic mean

2) Geometric mean

3) Harmonic mean

calculator:

The device that used to get an output by giving proper input is known as calculator. The dividing square roots calculator can be used to divide the two radicals.



Fig(i) Mean Average calculator

The formula used to find the median is

`barx =(sum(x)) / n `

In this article we are going to see about arithmetic mean ( average ) of a list of numbers .

Problems on Mean or Average Calculator:

Problem 1 :

Find the average or mean of the following list of numbers 3, 2, 6, 5, 6, 7, 5, 6.

Solution :

Given ,  3, 2, 6, 5, 6, 7, 5, 6.

`barx =(sum(x)) / n `

`barx = (3 + 2+ 6 + 5 + 6 + 7 + 5 + 6) / 8 `  

`barx = 40 / 8`

`barx = 5`

Answer: Mean of the given data set is 5.

Problem 2:

Find the average or mean of the following list of numbers  45, 47, 48, 42

Solution:

Given,  45, 47, 48, 42

`barx =(sum(x)) / n `

`"barx = `

`barx = 182 / 4`

`barx = 45.5`

Answer: The mean of the given set of number is 45.5

Problem 3:

John travel 5 hours at a speed of  70 mph and for 4 hours at  a speed of  80 mph. Find the average speed of the whole travel ?

Solution:

Given , 5 hours at 70 mph and 4 hours at 80 mph

We know that ,

Distance = Rate × Time

Whole distance = 70 * 5 + 80 * 4 = 350 + 320 = 670

Total hours  = 5 + 4 = 9

Average Speed =  Distance / Time

= `670/9` = 74.44

Answer: Average speed 74.44 mph.

Practice Problems on Mean or Average Calculator:

Problems:

Find the mean of the following list of numbers  21, 24, 20, 25, 23

Find the mean of the following list of numbers 15, 12, 19, 18, 14

Find the mean of the following list of numbers 30, 40, 20, 50.

Answers:

Mean = 22.6

Mean = 15.6

Mean = 35