The missing number is 18
The average is 23.
Average = sum(X)/n = 60/3 = 20
18.
It is: 14+15+22+21 = 72/4 => 18 which is the mean average
The average of 18 and 22 is 18+22/2 = 20
The average is 22.
2:18-2:22
The missing number is 18
19.75 is the average.
The average is 23.
Average = sum(X)/n = 60/3 = 20
18.
It is: 14+15+22+21 = 72/4 => 18 which is the mean average
14+16+16+18+22= 4(16)+22= 64+22= 86 86/5= 17.2 17.2
The average life span of a dollar is 18-22 months.
Use the definition of "average". Add the numbers together, then divide the result by 3 (since there are 3 numbers).