If there are 2 left, then their arithmetic mean (average) is the median.
Your number is nice.
The median of a data set is the number that is literally in the middle. For example: The median of the number set 1,1,3,4,7, is 3 because it is in the physical middle of the set of numbers. Note: To find a median, the numbers MUST be in written in order the median of 2,6,3, is not 6. You must rearrange them like: 2,3,6 and we can see 3 is the median
Median is the middle number.
ask her
No. One number cannot have a median.
Impossible to answer without knowing make or serial number.
That would depend on the value of the other numbers. It might have no affect on any of them or it could affect all of them. It is impossible to say without knowing what the other numbers in the set are.
The mass number doesn't depends on the number of electrons.
The median is the middle number. If there is an odd number of numbers in the set, the median is the middle number, and the only way to find the missing number is if the median is the missing number. If there is an even number of numbers in the set, the median is the average of the two middle numbers, and the only way to find the missing number is if the median is one of those two numbers. If it is, you can take the median and the one of the two numbers you know. Use the formula (# +#)/2=median and solve.
The median of a single number, such as 21618, is the number itself.
No way of knowing without a serial number.
Impossible to answer without knowing what the item is.