3. create a box and whisker plot using the following data. use the horizontal line as your number line.\n|…

3. create a box and whisker plot using the following data. use the horizontal line as your number line.\n| child age | average hours of sleep per night |\n| ---- | ---- |\n| 11 | 8 |\n| 11 | 7 |\n| 12 | 9 |\n| 12 | 9 |\n| 13 | 6 |\n| 12 | 10 |
Answer
Explanation:
Step1: Organize data
First, list the average - hours - of - sleep data: 8, 7, 9, 9, 6, 10.
Step2: Sort data
Sort the data in ascending order: 6, 7, 8, 9, 9, 10.
Step3: Find median
Since there are 6 data points, the median is the average of the 3rd and 4th values. Median $=\frac{8 + 9}{2}=8.5$.
Step4: Find lower quartile (Q1)
The lower half of the data is 6, 7, 8. The median of this lower half (Q1) is 7.
Step5: Find upper quartile (Q3)
The upper half of the data is 9, 9, 10. The median of this upper half (Q3) is 9.
Step6: Identify minimum and maximum
The minimum value is 6 and the maximum value is 10.
Step7: Draw box - and - whisker plot
On the number line, mark the minimum (6), Q1 (7), median (8.5), Q3 (9), and maximum (10). Draw a box from Q1 to Q3, a vertical line at the median inside the box, and whiskers from the box to the minimum and maximum values.
Answer:
A box - and - whisker plot is drawn with minimum = 6, Q1 = 7, median = 8.5, Q3 = 9, maximum = 10.