Answer:
Step-by-step explanation:
Median: C) 13
First Quartile: A) 8.5
Third Quartile: B) 17.5
Step-by-step explanation:
To find the median, we need to arrange the numbers in ascending order:
{3, 5, 5, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 21, 23}.
Since there are an even number of values, we take the average of the middle two numbers:
(10 + 11)/2 = 10.5.
To find the first quartile, we need to find the median of the lower half of the data set.
The lower half is {3, 5, 5, 8, 9, 10, 11, 12}.
Since there are an even number of values, we take the average of the middle two numbers:
(8 + 9)/2 = 8.5.
To find the third quartile, we need to find the median of the upper half of the data set.
The upper half is {14, 15, 16, 17, 18, 19, 21, 23}.
Since there are an even number of values, we take the average of the middle two numbers:
(17 + 18)/2 = 17.5.