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| Math
A |
Practice
with Data |
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Answer the
following questions pertaining to
collecting and organizing data.
| 1. |
College
students spent the following amounts of money on textbooks
for one semester.
$101, $107, $121, $90, $89, $101, $98, $110, $115, $85,
$95, $109, $109, $110, $109
| a.
|
Complete the charts below showing tally, frequency, and cumulative
frequency. |
Answer to part a |
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b.
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Draw the frequency histogram and the cumulative
frequency histogram.
|
Answer to part b |
|
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|
| Cost
Interval |
Tally |
Frequency |
| 80-89 |
|
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| 90-99 |
|
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| 100-109 |
|
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| 110-119 |
|
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| 120-129 |
|
|
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| Cost
Interval |
Cumulative
Frequency |
| 80-89 |
|
| 90-99 |
|
| 100-109 |
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| 110-119 |
|
| 120-129 |
|
|
|
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| 2. |
|
The monthly
family budget is $1200. According to the circle
graph at the left, how much of the monthly budget, to the
nearest dollar, is spent on pet supplies?
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Choose:
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Explanation
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| 3. |
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According to the box and whisker
plot shown at the left, what is:
-
the median?
-
the first
quartile?
-
the third
quartile?
-
the
smallest value?
-
the largest
value?
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Answer
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| 4. |
Prepare a
scatter plot for the following data. Determine from
your graph whether there is a correlation between the
number of hours spent in the mall and the number of
dollars spent.
| Hours
in Mall |
10 |
8 |
9 |
3 |
1 |
2 |
5 |
6 |
7 |
8 |
2 |
3 |
| Dollars
spent |
40 |
15 |
24 |
20 |
10 |
35 |
50 |
70 |
18 |
25 |
100 |
60 |
Answer
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| 5. |
|
Math Test Scores
(out of 50 pts)
|
| Stem |
Leaf |
| 3 |
5 6 8
|
| 4 |
0 2 2 4 5 5 7 8 9
|
| 5 |
0 0 0
|
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According to
the stem and leaf plot at the left, how many test scores are
in the 40's?
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Choose:
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