16: 8/25; 38%; .41
18: 84% 43/50; 7/8; .91
20: 26.8%; 2.26; 2 2/5; 2.62; 271%
22: 21/25= 84% so yes

difference between standard deviation and mean deviation
Answer:
Standard deviation is basically used for the variability of data and frequently use to know the volatility of the stock. A mean is basically the average of a set of two or more numbers. Mean is basically the simple average of data
Hope this helps!!

Sherry sold 3672 tickets because 459 times 8 equals 3672
The answer is 6:9 because 4:6' equivalent is 2:3, which is the same as 6:9
Answer:
900
Step-by-step explanation:
(n-2)*180
5*180=900