Odd. There is only 1 Prime number in the even group: 2. This is because all even numbers above 2 have at least three factors: 1, 2, and itself. There are many odd prime numbers: 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 41, 43, 47, 53, 59...
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All even numbers except 2 are divisible and thus not prime. There is no such number for odd numbers, and there is in fact just one even prime and infinitely many odd primes.
The average of any group of numbers is (the sum of the numbers in the group) divided by (the number of items in the group). It doesn't matter whether the numbers are integers, fractions, decimals, positive, or negative.
add the group up and then divide by the number of numbers. Ex. 33, 54, 85. 33 + 54 + 85 = 132 132 divided by 3 = 44 Average = 44
The median of a group of numbers is the middle of the group. For example: 1,7,11,6,10. First, you need to put the numbers in order from least to greatest: 1,6,7,10,11. Then you count up the amount of numbers (5). Since 5 is an odd number if you take away 1 then there is 4 (an even number). The median is 7, because it is in the middle of all 5 numbers.
We aren't going to be able to answer this accurately if you don't tell us what the numbers are.