What is the average of even numbers from 4 to 65? Here we will show you how to calculate the average of even numbers from 4 to 65.
To find the average of the even numbers from 4 to 65, we first calculate how many even numbers there are from 4 to 65. Then, we calculate the sum of even numbers from 4 to 65. And finally, we divide the sum by the number of even numbers to get the average.
The range is from 4 to 65, and the even numbers within that range are from 4 to 64. Therefore, the first even number in the sequence is 4, and the last even number in the sequence is 64.
Step 1) Calculate the total number of even numbers from 4 to 65
Here we calculate the total number of even numbers from 4 to 65 by entering the first and last even number in the sequence into our formula. Here is the formula and the math:
tot = (last - first + 2) ÷ 2
tot = (64 - 4 + 2) ÷ 2
tot = 62 ÷ 2
tot = 31
Total even numbers from 4 to 65 = 31
Step 2) Calculate the sum of even numbers from 4 to 65
To calculate the sum of even numbers from 4 to 65, you enter the total even numbers (tot) from Step 1 and the first even number in the sequence into our formula. Here is the formula and the math:
sum = (tot ÷ 2) × (2 × first + (2 × (tot - 1))
sum = (31 ÷ 2) × (2 × 4 + (2 × (31 - 1))
sum = 15.5 × (8 + 60)
sum = 15.5 × 68
sum = 1054
Sum of even numbers from 4 to 65 = 1054
Step 3) Calculate the average of even numbers from 4 to 65
Almost done! Now we can calculate the average of even numbers from 4 to 65 by dividing the sum of even numbers from Step 2 by the total even numbers from Step 1. Here is the formula, the math, and the answer:
Average = sum ÷ tot
Average = 1054 ÷ 31
Average = 34
Average of even numbers from 4 to 65 = 34
Average of Even Numbers Calculator
Here you can calculate the average of even numbers of a different sequence.