Respuesta :
The interquartile range is 5, and 8 is the median.
The data sorted from least to greatest is:
4, 5, 6, 8, 9, 10, 11, 13.
- IQR = Q3 - Q1
- To find both the Q3 and Q1, we have to look at 8 and 9.
- 8 + 9/2 = 8.5
- The first quartile is the median of the data points left OF THE MEDIAN.
- 4, 5, 6, 8.
- Q1 = 5 + 6/2 = 11/2 = 5.5
- IQR = Q3 - Q1
- = 10.5 - 5.5
- = 5