Write the formula to calculate average and write any three examples where we use average
Answers
Answer:
The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
The same method applies with larger sets of data:
To calculate the average number of days in a month we would first establish how many days there are in each month (assuming that it was not a leap year):
Month Days
January 31
February 28
March 31
April 30
May 31
June 30
July 31
August 31
September 30
October 31
November 30
December 31
Next we add all the numbers together: 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31 = 365
Finally we divide the answer with the number of values in our data set in this case there are 12 (one for each month counted).
So the mean average is 365 ÷ 12 = 30.42.
The average number of days in a month, therefore, is 30.42
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Answer:
Explanation:
The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.