Mean Calculator

You can use the mean calculator to find a data set's mean or average. It will show the sum of the data values, and the count of the data set values. You can also see the calculation steps.

You just need to type or copy and paste the data. You can copy the data from a spreadsheet or text document. But make sure to separate each number with a comma, space, or new line. The calculator accepts data with mixed delimiters also. Finally, click the "calculate" button.

The mean

One significant statistic's measure of the central tendency is the mean. The mean is computed by dividing the total of a data set's data values by the count of the data set's values. The mean is used for further statistics calculations because it is based on all values in the data set.

The mean can be computed in a variety of ways, including arithmetic mean, geometric mean, weighted average mean, and so on. In general, the mean in statistics represents the arithmetic mean of a data set.

The mean of a population

The mean of a population is represented by the Greek letter μ (Mu). Use the below formula to find the mean of a population.

μ = Sum of the data set’s values / Total number of data values in the population

μ = X₁ + X₂ + ⋯ + Xₙ / N

μ = ΣX / N

The mean of a sample

The mean of a sample is represented by the X̄ (X Bar). Use the below formula to find the mean of a sample.

X̄ = Sum of the data set’s values / Total number of data values in the sample

X̄ = X₁ + X₂ + ⋯ + Xₙ / n

X̄ = ΣX / n

The Average

In statistics, an average is a single number that can represent an entire set of data values. So any measure of central tendency can be the average. As a result, in statistics, the average is any value that is the data set's mean, median, or mode.

However, in mathematics, the average is determined by dividing the total value of the data set by the total number of items in the data set. When there are two numbers, the sum of the two numbers divided by two is the average between the two numbers. As a result, the average in mathematics has the same meaning as the mean in statistics.

How to find the average or the mean?

1. Find the total value of the data set.
2. Find the total count of the data set.
3. Divide the total value by the total count of the data set.

The average = The total value of the data set / The total count of the data set

Let’s learn how to find the average of numbers using the below examples.

Example 1

You've compiled the latest three-match scores of your college cricket team's top six players. Average these numbers and find the best 3 players with the best average scores.

Player	Match 1	Match 2	Match 3
Smith	25	30	55
Roy	15	58	20
Jack	Not played	25	46
George	30	31	38
Milton	65	17	29
Daniel	55	32	18

Solution

You have to average 3 numbers (Scores). To do that get the total of the 3 numbers and divide it by 3 which is the count.

Smith

Smith's average score = The total Smith's score / Total number of matches = (The 1st match score + The 2nd match score + The 3rd match score) / Total number of matches

Smith's average score = (25 + 30 + 55) / 3 = 110 / 3 = 36.7

Roy

Roy's average score = The total Roy's score / Total number of matches = (The 1st match score + The 2nd match score + The 3rd match score) / Total number of matches

Roy's average score = (15 + 58 + 20) / 3 = 93 / 3 = 31

Jack

Jack has played only 2 matches. Therefore, the average between two numbers of the scores of the 2nd and 3rd match should be taken as Jack’s average score.

Jack's average score = The total Jack's score / Total number of matches = (The 2nd match score + The 3rd match score) / Total number of matches

Jack's average score = (25 + 46) / 2 = 71 / 2 = 35.5

George

George's average score = The total George's score / Total number of matches = (The 1st match score + The 2nd match score + The 3rd match score) / Total number of matches

George's average score = (30 + 31 + 38) / 3 = 99 / 3 = 33

Milton

Milton's average score = The total Milton's score / Total number of matches = (The 1st match score + The 2nd match score + The 3rd match score) / Total number of matches

Milton's average score = (65 + 17 + 29) / 3 = 111 / 3 = 37

Daniel

Daniel's average score = The total Daniel's score / Total number of matches = (The 1st match score + The 2nd match score + The 3rd match score) / Total number of matches

Daniel's average score = (55 + 32 + 18) / 3 = 105 / 3 = 35

So, you can create a summary table like this.

Player	Average Score	Rank
Smith	36.7	2
Roy	31	6
Jack	35.5	3
George	33	5
Milton	37	1
Daniel	35	4

The top 3 players are Milton, Smith, and Jack, according to the above table.

Using the mean/average calculator, you can easily get the average score for each player by simply copying each line in the table. Following that, you can quickly create the final average score summary table.

Example 2

The data set below shows the average semester scores for students enrolled in the MBA Finance (Special) program. A special award will be given to the student with the highest overall average score at convocation. Who will win this award?

Student	Semester 1	Semester 2	Semester 3	Semester 4	Average
Susan	66	71	60	47	(66 + 71 + 60 + 47) / 4
Richard	58	73	50	47	(58 + 73 + 50 + 47) / 4
Thomas	Exempt	82	47	82	(82 + 47 + 82) / 3
Charles	67	47	66	66	(67 + 47 + 66 + 66) / 4
Jessica	47	83	52	61	(47 + 83 + 52 + 61) / 4
Karen	63	56	65	62	(63 + 56 + 65 + 62) / 4
Lisa	64	63	62	85	(64 + 63 + 62 + 85) / 4
Ronald	68	66	69	81	(68 + 66 + 69 + 81) / 4
Jacob	Exempt	64	66	77	(64 + 66 + 77) / 3
Rebecca	70	84	62	51	(70 + 84 + 62 + 51) / 4

Now you can create a summary table like below.

Student	Overall average score	Rank
Susan	61.00	8
Richard	57.00	10
Thomas	70.33	2
Charles	61.50	6
Jessica	60.75	9
Karen	61.50	6
Lisa	68.50	4
Ronald	71.00	1
Jacob	69.00	3
Rebecca	66.75	5

As per the above table, Ronald has the overall highest average score. Therefore, Ronald will win the special award at the convocation.

For the example above, you can use the mean calculator. The overall average score for each student can be easily found by merely copying each line of the table. As a result, you do not need to calculate the total score and the total number of semesters separately for each student. You will quickly get the average score for each student, and you can quickly build the overall average score summary table.

The Use of the Knowledge About Average and Mean in Real Life

Healthcare

• Pediatricians compute the typical weight of newborns to find trends.
• Medical representatives examine the average prices of all generic pharmaceutical brands before setting prices for new products.

Real Estate

• Real estate brokers compute the average price of lands and homes to inform their clients about the current price ranges.
• For forecasting purposes, real estate companies compute typical broker fees.

Human Resources

• Human resource departments typically calculate the average pay for new hires in the market. It is helpful to budget for new talent acquisitions.
• The HR departments must budget an average amount for employee welfare initiatives. They could find it easier to keep their spending on employee welfare within the spending limit.

Marketing

• Marketers typically calculate average sales per customer to monitor the growth of average sales per customer.
• They calculate average sales per advertisement to ensure their marketing spending is used effectively.

Education

• The average number of students per teacher is calculated by educational institutions to establish a productive learning environment.
• The average student grade is frequently calculated by educational institutions to understand the overall progress of their institution.

Sports

• To determine whether a bowler is a fast bowler in cricket, the average balling speed is calculated.
• To determine performance patterns, average running scores for batsmen are computed in cricket.