Question

Question 4(Multiple Choice Worth 2 points)

(Appropriate Measures MC)

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

Answer: The IQR is the best measure of variability and it equals 32.

Step-by-step explanation: If you made notes and check your notes you would know that IQR is better than Range, so first you need to order the date in the leaf plot from least to greatest. (No need to do that since it already is in order) Since it is already created for you, there is no need to create it. First multiply the IQR by Q1 (the q1 is 17) Don't forget to determine if there are any outliers. Then multiply the Q2 by the IQR The Q2 is 29.5. Then find the Q3, and do the same thing then you would add the Q3 AND Q1 to get the answer of 32.

Hope this helped!