-7
The mean or average of the numbers -410 and 400 is -5. It is found by adding the two numbers together and dividing the sum by two.
They are all the numbers that end with 0
410
410
The count of the numbers is 410+1+400 = 811. To get the sum of all these numbers note that all the positive numbers cancel with their negative counterparts and you are left only with the numbers from -410 to -401 (inclusive). The sum of these numbers is -4055. So their mean is Sum/Count = -4055/811 = -5.
410
390, 400
380 and 410
The average of 330 and 410 is 370.
410 rounded to the nearest hundred is 400
To find the fifth number, you can use the formula for finding the average of a set of numbers. The sum of the 5 numbers is 82 * 5 = 410. The sum of the 4 known numbers is 80 * 4 = 320. Therefore, the fifth number can be found by subtracting the sum of the 4 known numbers from the sum of all 5 numbers: 410 - 320 = 90. So, the fifth number is 90.
400