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Concept explainers
(a)
To find: The box and the whisker plot and the shape of the distribution,
(a)
![Check Mark](/static/check-mark.png)
Answer to Problem 6PPS
The majority data in Figure 3 is on the right so the distribution is negatively skewed.
Explanation of Solution
Given:
The data point for the Kevin’s fantasy football team is shown in Table 1
14 | 11 | 17 | 9 | 6 | 11 | 7 | 8 | 12 | 13 | 10 | 9 |
5 | 11 | 7 | 13 | 9 | 12 | 10 | 9 | 15 | 11 | 13 | 15 |
Table 1
Calculation:
Use the graphing calculator.
Press STAT and select edit option and enter the values of the table as shown in Figure 1
Figure 1
Press 2nd and y= and select option 1 on the plot 1 as shown in Figure 2
Figure 2
Press graph key to trace the graph as shown in Figure 3
Figure 3
The Figure 3 shows that the majority of the data is on the middle and on the right so the distribution is negatively skewed.
(b)
To find: The centre and the spread of the data using either the mean and standard deviation of the five number summary to justify the choice.
(b)
![Check Mark](/static/check-mark.png)
Answer to Problem 6PPS
The mean of the model is 10.71, the standard deviation of the model is 3 and the median is 11.
Explanation of Solution
Press the Stat and select CLAC option and select 1 Var stats and press enter as shown in Figure 4
Figure 4
Press enter to obtain the values as shown in Figure 5
Figure 5
From above the mean of the model is 10.71.
The standard deviation of the model is 3.
Press the arrow down of the display screen to find the display screen to find the median as shown in Figure 6
Figure 6
Thus, the median is 11.
Chapter 11 Solutions
Glencoe Algebra 2 Student Edition C2014
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