What is the average of odd numbers from 18 to 148? Here we will show you how to calculate the average of odd numbers from 18 to 148.
To find the average of the odd numbers from 18 to 148, we first calculate how many odd numbers there are from 18 to 148. Then, we calculate the sum of odd numbers from 18 to 148. And finally, we divide the sum by the number of odd numbers to get the average.
The range is from 18 to 148, and the odd numbers within that range are from 19 to 147. Therefore, the first odd number in the sequence is 19, and the last odd number in the sequence is 147.
Step 1) Calculate the total number of odd numbers from 18 to 148
Here we calculate the total number of odd numbers from 18 to 148 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 = (147 - 19 + 2) ÷ 2
tot = 130 ÷ 2
tot = 65
Total odd numbers from 18 to 148 = 65
Step 2) Calculate the sum of odd numbers from 18 to 148
To calculate the sum of odd numbers from 18 to 148, 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 = (65 ÷ 2) × (2 × 19 + (2 × (65 - 1))
sum = 32.5 × (38 + 128)
sum = 32.5 × 166
sum = 5395
Sum of odd numbers from 18 to 148 = 5395
Step 3) Calculate the average of odd numbers from 18 to 148
Almost done! Now we can calculate the average of odd numbers from 18 to 148 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 = 5395 ÷ 65
Average = 83
Average of odd numbers from 18 to 148 = 83
Average of Odd Numbers Calculator
Here you can calculate the average of odd numbers of a different sequence.