The average is 2 - Adding all the numbers together gives a total of 42. There are 21 numbers in the range - therefore the average is 2.
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It is 1.
The arithmetic mean is 36.
it is 33; you can add all up and divide by 17, or simply add first and last and divide by 2
The sum of the integers 1 to 99 is 4950. An easy way to figure this out is using the equation N*(N+1)/2 where N is the largest number in the set.
The sum of all integers between 45 and 90 is 3105.
It is 1.
The average is zero.
To find the average of integers, add them all together then divide the total by the number of integers.
The average is -3
The sum of all integers from 1 to 20 inclusive is 210.
The arithmetic mean is 36.
1 is a common factor for all integers.
it is 33; you can add all up and divide by 17, or simply add first and last and divide by 2
810. All of the integers from -30 to30 cancel each other out by adding a negative to a positive. Then all you need to do is add the integers from 31 to 50. (31 + 32 + ....+50)
The sum of the integers 1 to 99 is 4950. An easy way to figure this out is using the equation N*(N+1)/2 where N is the largest number in the set.
The sum of all integers between 45 and 90 is 3105.
There are 21 integers between 0 and 20, inclusive. This is because when counting the integers between two numbers, you need to include both endpoints in the count. So, in this case, you would include 0 and 20 in the count, resulting in a total of 21 integers.