Answer:
19.5
Explanation:
The formula for the mean is...
sum of the terms / number of terms
sum of the terms :
16 + 17 + 17 + 17 + 17 + 19 + 19 + 19 + 19 + 21 + 22 + 22 + 23 + 25 = 273
number of terms (the amount of dots there are):
14
mean = 273 / 14
= 19.5
Hope this helps, Let me know if you have any questions !