Question

HELP ME ITS DUE TODAY!!!!! The scores earned in a flower-growing competition are represented in the stem-and-leaf plot.

1 7, 9
2 1, 5, 9
3 0, 1, 2
4 6, 9
Key: 2|1 means 21


What is the appropriate measure of variability for the data shown, and what is its value?
The IQR is the best measure of variability, and it equals 32.
The range is the best measure of variability, and it equals 11.
The IQR is the best measure of variability, and it equals 11.
The range is the best measure of variability, and it equals 32.

Answer 1

The answer to your problem is, D. The range is the best measure of variability, and it equals 32.

Explanation:

We know the scores earned in a flower-growing competition are represented in the stem-and-leaf plot.

• 1 7, 9
• 2 1, 5, 9
• 3 0, 1, 2
• 4 6, 9

The key will equal 2|1 means 21

Which we conclude to 17, 19, 21, 25, 29, 30, 31, 32, 46, 49.

Quartile:

1. Quartile 1, Q1 = 21
2. Quartile 2, Q2 = 29.5
3. Quartile 3, Q3 = 32
4. Third Quartile, Q3 = 32

Median, Minimum, Maximum, & Range:

1. Median, Q2 = 29.5
2. Minimum, Min = 17
3. Maximum, Max = 49
4. Range, R = 32

Thus the answer to your problem is, D. The range is the best measure of variability, and it equals 32.