What is the mean of the data set?
Data set:
393 ; 399 ; 402 ; 402 ; 407 ; 410 ; 424 ; 425 ; 428
393 + 399 + 402 + 402 + 407 + 410 + 424 + 425 + 428 = 3,690
3,690 / 9 = 410
The mean is 410. It is the average of all numbers.
What is the median of the data set?
Data set:
01 ; 03 ; 14 ; 15 ; 22 ; 35 ; 35 ; 43
There are 8 numbers, we need to get the sum middle 2 and divide it by 2 to get the median.
15 + 22 = 37
37/2 = 18.50
The median is 18.50
