16, 25, 34, 43, 52, 61, 70
They add up to 55
5.5 is the median when your two numbers are 1 and 10. There are two ways of getting it. Add both numbers and divide by 2 or find the number half way between the two.
175
Add the two numbers together and then divide by two. Assume the two number is 10 and 20. Add them together (30) and divide by 2 (15).
90. all the numbers from 10 through 99
There are no prime numbers at all between 10.
no 3 numbers add to equal 10 and multiply to equal 40.
The sum of all prime numbers between 10 and 16 is 41.
55
It means that you add up all the numbers in a set of numbers, then divide by the size of the set. For example, if you have 10 numbers, you add them all up and divide the result by 10.The average is also known as "arithmetic mean".
The prime numbers between 10 and 15 are 11 and 13.
Same as average. For example, if you have 5 numbers, add them all up, then divide the result by 5. If you have 10 numbers, you add and divide by 10, etc.
Average, in a way, is a sort of central value; if you take an "average" of several numbers, some of the numbers will be above, some below, that average.The calculation is to add all the numbers, then divide by the number of numbers (i.e., if you have 10 numbers, add all of them, then divide by 10).
The prime numbers between 0 and 10 are 2, 3, 5, and 7.
You know that sum of the first n whole numbers is n(n+1)/2. ( it is the same as the first n natural numbers since the zero does not add anything) So lets say you want the sum of all the whole numbers between 3 and 10. ( I made it easy to illustrate the idea.) The sum of the whole numbers between 0 and 3 is 3(4)/2=6 The sum of the whole numbers between 0 and 10 is 10(11)/2=55 So the sum of the whole numbers between 3 and 10 is the (sum of the whole number between 0 and 10) -(sum of whole numbers between 0 and 3) which is 55-6=49 So in general, for whole numbers m and n with m
2
add all the #s up, then divide by the number of numbers. It's the average. You add all the numbers together and however many numbers there are you divide by that number. For example: 12, 11, 7, and 10 Add them and they equal 40. There are four numbers so you divide 40 by 4 and get 10. That's the mean