Make a box-and-whisker plot of the data.
60,63,53,66,65,58,51,55,58,51,58,62,53,66,61,51,65,52,54,50
Quick help
First, we need to find the minimum, Q1 (25th percentile), median (Q2 or 50th percentile), Q3 (75th percentile), and the maximum value:
Minimum: 50
Q1: 53
Median: 58
Q3: 65
Maximum: 66
Then, we can draw the box-and-whisker plot:
____________
| | |_____ ┐
50 53 58 65 66
|____|____| ┘
The horizontal line inside the box represents the median (58), the bottom and top of the box represent Q1 (53) and Q3 (65) respectively. The whiskers extend to the lowest and highest data values within 1.5 times the interquartile range (IQR = Q3 - Q1) from the edges of the box. Any data values beyond the whiskers are considered outliers and represented by individual points (50 and 66 in this case).