Statistics – 1st Qualification for 1st Organizing and Summarizing Data - REDO
1.
How do you find the interquartile range? What does it represent?
2.
Without using a graphing calculator, describe how to find the outliers of a data set.
For questions 3 – 6, explain why the graphs are misleading.
3.
4.
3. _____________________
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4. _____________________
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5.
6.
5. _____________________
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6. _____________________
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For #7 – 11, the weights (in pounds) of randomly chosen preschool children are listed in the table.
33
34.5
27.5
29
17.5
28
25
35
32
25
30.5
37
29
27
28
7.
What is the five number summary for the data?
8.
What is the interquartile range?
9.
Where are the fences?
33
27
32.5
34
31
38
30
35
28.5
26
44.5
32.5
26.5
37
38
30
31
7. _____________________
8. _____________________
9. _____________________
10. Are there any outliers?
10. _____________________
11. Accurately construct the boxplot.
For 12 - 18, use the data that shows points scored for individuals on a basketball team.
For 12 – 14, complete the frequency distribution. Round all decimals to the ten
thousandths. (4 places).
#12
#13
Points Scored
Frequency
0 to < 10
12
10 to < 20
15
20 to < 30
28
30 to < 40
19
40 to < 50
8
50 to < 60
3
Relative
Frequency
Cumulative
Frequency
Points
0 to < 10
10 to < 20
20 to < 30
30 to < 40
40 to < 50
50 to < 60
Frequency
12
15
28
19
8
3
#14
Cumulative
Relative
Frequency
15. Construct a histogram for the data.
16. Construct a frequency polygon for the data.
17. Construct a frequency ogive for the data.
18. Construct a relative frequency ogive for the data.