What is the average of odd numbers from 8 to 97? Here we will show you how to calculate the average of odd numbers from 8 to 97.
To find the average of the odd numbers from 8 to 97, we first calculate how many odd numbers there are from 8 to 97. Then, we calculate the sum of odd numbers from 8 to 97. And finally, we divide the sum by the number of odd numbers to get the average.
The range is from 8 to 97, and the odd numbers within that range are from 9 to 97. Therefore, the first odd number in the sequence is 9, and the last odd number in the sequence is 97.
Step 1) Calculate the total number of odd numbers from 8 to 97
Here we calculate the total number of odd numbers from 8 to 97 by entering the first and last odd number in the sequence into our formula. Here is the formula and the math:
tot = (last - first + 2) ÷ 2
tot = (97 - 9 + 2) ÷ 2
tot = 90 ÷ 2
tot = 45
Total odd numbers from 8 to 97 = 45
Step 2) Calculate the sum of odd numbers from 8 to 97
To calculate the sum of odd numbers from 8 to 97, you enter the total odd numbers (tot) from Step 1 and the first odd number in the sequence into our formula. Here is the formula and the math:
sum = (tot ÷ 2) × (2 × first + (2 × (tot - 1))
sum = (45 ÷ 2) × (2 × 9 + (2 × (45 - 1))
sum = 22.5 × (18 + 88)
sum = 22.5 × 106
sum = 2385
Sum of odd numbers from 8 to 97 = 2385
Step 3) Calculate the average of odd numbers from 8 to 97
Almost done! Now we can calculate the average of odd numbers from 8 to 97 by dividing the sum of odd numbers from Step 2 by the total odd numbers from Step 1. Here is the formula, the math, and the answer:
Average = sum ÷ tot
Average = 2385 ÷ 45
Average = 53
Average of odd numbers from 8 to 97 = 53
Average of Odd Numbers Calculator
Here you can calculate the average of odd numbers of a different sequence.