The set of Real numbers includes all commonly used numbers. But the Real numbers are only a proper subset of the set of Complex numbers, and the Complex numbers are a proper subset of Quaternions.
It is a bit like the Russian Babushka dolls with one doll inside another which is inside another, and so on. In reality, therefore, there is no such set.
Also, note that "Group" has a very special meaning in mathematics. The set of Real numbers is a group, but it is also a Field.
real
1 to 50
Odds
By adding up all the numbers in the group and dividing by the number of numbers in the group.
The average of a group of numbers is(the sum of all the numbers in the group)/(how many numbers there are in the group)
Odds
Average of the numbers in a group =(the sum of all the numbers in the group) divided by (the number of numbers in the group)
Yes, that is true.
Yes the integer group includes negative numbers, positive numbers, and 0.
odds
the set of real numbers
All the numbers in each group have the same modulo 3 value.