The first 10 even numbers are 2, 4, 6, 8, 10, 12, 14, 16, 18, 20. What are the first and third quartiles?
2, 4, 6, 8, 10, 12, 14, 16, 18, 20
6 and 16
8 and14
2 and 20
8 and 16
The first quartile is the median of the lower half of the data set. Since there are 10 numbers, the first quartile is the median of the first 5 numbers. In this case, the first quartile is 6.
The third quartile is the median of the upper half of the data set. Again, since there are 10 numbers, the third quartile is the median of the last 5 numbers. In this case, the third quartile is 16.
Therefore, the first quartile is 6 and the third quartile is 16.