33, 25, 42, 25, 31, 37, 46,29,38

What is the first quartile of the data?

The First Quartile is Q1 = 27

Step-by-step explanation:

To calculate:

1. Order your data set from lowest to highest values

2. Find the median. This is the second quartile Q2.

3. At Q2 split the ordered data set into two halves.

4. The lower quartile Q1 is the median of the lower half of the data.

5. The upper quartile Q3 is the median of the upper half of the data.

Step by step solution:

1) put the numbers in order:

25,25,29,31,33,37,38,42,46

2) find the median:

25,25,29,31,33,37,38,42,46

33

3) find the median of the first quartile:

25,25,29,31

25 and 29

25+29 = 54

54/2

27

Q1 = 27