Given:
Sample A: 75, 80, 60, 90, 85, 70, 90, 70, 65
Sample B: 95, 90, 85, 90, 100, 75, 90, 85
Analyze the given samples, to determine the mean and median of each sample set, use this formula:
For mean:
Sample A (mean) = (75+80+60+90+85+70+90+70+65)/ 9
Sample A (mean) = 76.11
Sample B (mean) = (95+90+85+90+100+75+90+85)/8\
Sample B (mean) = 88.75
To determine the median, arrange the data from smallest to highest:
Sample A: 60 65 70 70 75 80 85 90 90
The median is:
n/2 = 9/2 = 4.5; the median is the average of the 4th and 5th term:
70 + 75 / 2 = 72.5
Sample B: 75 85 85 90 90 90 95 100
The median is the
8/2 = 4th term
Therefore, the median is 90.
