The data set arranged in ascending order is: 8, 8, 9, 11, 13, 17, 20, 20, 21.
The third quartile is the median of the upper half of the data set. In this case, the upper half is: 17, 20, 20, 21.
The median of this upper half is: (17 + 20) / 2 = 37 / 2 = 18.5
So, the third quartile of the data set is 18.5.
The third quartile (rounded to the nearest tenth if needed) of the following data set is: 11, 20, 17, 8, 8, 9, 20, 13, 21.
(1 point)
3 answers
i dont think that correct
I apologize for the mistake.
Let me re-calculate the third quartile.
The data set arranged in ascending order is: 8, 8, 9, 11, 13, 17, 20, 20, 21.
The median of the entire data set is the average of the two middle values: (11 + 13) / 2 = 24 / 2 = 12.
The third quartile is the median of the upper half of the data set. In this case, the upper half is: 17, 20, 20, 21.
The median of this upper half is the average of the two middle values: (20 + 20) / 2 = 40 / 2 = 20.
Therefore, the third quartile of the data set is 20.
Let me re-calculate the third quartile.
The data set arranged in ascending order is: 8, 8, 9, 11, 13, 17, 20, 20, 21.
The median of the entire data set is the average of the two middle values: (11 + 13) / 2 = 24 / 2 = 12.
The third quartile is the median of the upper half of the data set. In this case, the upper half is: 17, 20, 20, 21.
The median of this upper half is the average of the two middle values: (20 + 20) / 2 = 40 / 2 = 20.
Therefore, the third quartile of the data set is 20.
1 answer