Answer:
20.9, 34
Explanation:
How to find mean: add up all the numbers and divide by how many numbers
19, 19, 20, 20, 20, 21, 22, 22, 22, 22, 23
(19+19+20+20+20+21+22+22+22+22+23)/11=230/11=20.9(rounded)
If the new mean is 22, sum of all the numbers is 22 times 12=264
264-230=34(new player age)