4.1, 4.2, 4.6, 4.9, 4.19, 4.23, 4.25, 4.28, 4.32, 5.2, 5.8, 5.10, 5.12, 5.20, 5.28, 5.31, 5.32, 5.38, 5.55
Answers to homework problem set #2:
4.1) a.) Qualitative
b.) quantitative continuous
c.) qualitative
d.) quantitative discrete
e.) qualitative
f.) quantitative continuous
4.2) a.) Quantitative discrete
b.) Quantitative continuous
c.) Quantitative continuous
d.) Quantitative discrete
e.) Quantitative continuous
4.6) a.) Yes, they add up to 100%
b.) A total of 45%
c.)
d.) Answers will vary
4.9) A bar graph.
4.19)
x
x x x
x x x
x x x x x x
x x x x x x x
------------------------------------------------------------------------------------------------------------
0 1 2 3 4 5 6 7 8 9 10 11
4.23)
83| 4
84|
85|
86| 7
87| 5 7
88| 0 4 5 8
89| 1
90| 5
Note: 90 | 5 is equal to 90.5
4.25)
a.)
|0|
|1|
|2|
|3|
8 5 |4|
2 |5|
9 |6|
9 6 |7| 3 4 5 6 8
6 0 |8| 0 1 2 4 7
4 2 |9|
Note: 0 |8| 1 means 80 and 81.
b.) Student B did better work.
4.28)
a.)
0 | 3 6
1 | 2 3 4 6 6 6 8 8
2 | 0 1 2 2 3 4 4 6 8 8
Note: 0|3 means 3.
b.) ii.) unimodal and v.) skewed right.
c.) 1/20.
4.32)
a.) A histogram.
b.) 6 months had less than 6 mm of rainfall.
c.) Unimodal.
5.2)
b.) median