Answer: 480
Explanation:
To find the mean number, we need to calculate the average of the given set of numbers: 460, 320, 440, 560, and 620.
To find the mean, we add up all the numbers in the set and then divide the sum by the total count of numbers in the set.
Sum of the numbers: 460 + 320 + 440 + 560 + 620 = 2400
Count of numbers: 5
Mean = Sum of numbers / Count of numbers = 2400 / 5 = 480
Therefore, the mean number of the given set (460, 320, 440, 560, and 620) is 480.
Remember, to find the mean, we add up all the numbers in the set and divide the sum by the total count of numbers. In this case, the mean number is 480.