Urban Data analysis (statistics) questions
KnowledgeCats
Use the table below to answer the following questions:
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| FREQUENCY | PERCENT | VALID PERCENT | CUMULATIVE PERCENT |
Valid | Protestant Catholic Jewish None Other | 953 333 31 140 35 | 63.5 22.2 2.1 9.3 2.3 | 63.9 22.3 2.1 9.4 2.3 | 63.9 86.2 88.3 97.7 100.0 |
Missing | Total DK NA | 1492 1 7 | 99.5 .1 .5 | 100.0 |
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Total | Total | 8 1500 | .5 100.0 |
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1) How many respondents did not provide data?
2) What percentage of respondents is protestant?
3) How many of the respondents are protestant?
4) What proportion of respondents is catholic?
Use the table below to answer the following questions:
How Do You Get to Class?
Car Public transportation Walk Bike Other |
37 18 28 12 20 |
Total | 115 |
5) How many respondents provided data for this table?
6) What percent of respondents either bike or walk?
- Use the frequencies in the table below to fill in the percent, valid percent, and cumulative percent columns. Then use the table to answer the following questions
THINK OF SELF AS LIBERAL OR CONSERVATIVE
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| FREQUENCY | PERCENT | VALID PERCENT | CUMULATIVE PERCENT |
Valid | Extremely Liberal Liberal Slightly Liberal Moderate Slightly Conservative Conservative Extremely Conservative | 139 524 517 1683 618 685 167
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Missing | Total DK NA | 4333 154 23 |
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Total |
| 177 4510 | 100.0 |
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7) Is this variable nominal, ordinal, or interval/ratio?
8) What percent of respondents are either slightly conservative or slightly liberal?
Construct a frequency table using the data below. Then use the table to answer the following questions.
How often do you use the library?
Daily
Several times a week
Weekly
Daily
Never | Several times a week
Daily
Daily
Several times a week
Weekly | Weekly
Several times a week
Never
Several times a week
Several times a week | Daily
Monthly
Several times a week
Several times a week
Monthly | Several times a week
Never
Several time a week
Daily
Weekly |
9) How many attributes does this variable have?
10) How many respondents use the library on a daily basis
11) What percent of respondents use the library more often than monthly?
12) What proportion of respondents are married?
EXERSICE 2:
1) Calculate the median for the following raw data set:
3,6,2,4,3,5,4,7,4,2
2) Calculate the Mode and mean for the following raw data set:
9,6,5,5,10,7,3,5,6,15,8,9,10,2,3,11,4,6,7,13,10,5,6,6,3,9,
12
3) Calculate the median of the following frequency table (If the measure doesn’t apply, indicate so by answering “not applicable”):
Labor force status
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| FREQUENCY | PERCENT | VALID PERCENT | CUMULATIVE PERCENT |
Valid | Working full time Working part time Temp not working Unempl, laid off Retired School Keeping House Other | 2321 440 84 143 712 139 490 177 | 51.5 9.8 1.9 3.2 15.8 3.1 10.9 3.9 | 51.5 9.8 1.9 3.2 15.8 3.1 10.9 3.9 | 51.5 61.3 63.1 66.3 82.1 85.2 96.1 100.0 |
Missing
Total | Total
NA | 4506
4
4510 | 99.9
.1
100.0 | 100.0 |
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4) For the table below calculate the Mode and Mean (if a measure doesn’t apply, indicate so by answering “not applicable”):
AGE OF RESPONDENT
| FREQUENCY | PERCENT | VALID PERCENT | CUMULATIVE PERCENT |
VALID 18 19 20 21 22 23 | 19 47 50 52 72 63 | 6.3 15.5 16.5 17.2 23.8 20.8 | 6.3 15.5 16.5 17.2 23.8 20.8 | 6.3 21.8 38.3 55.4 79.2 100.0 |
Total | 303 | 100.0 | 100.0 |
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5)For the table below:
a) Explain what happens to the mode if we add an outlier with a very high value.
b) Explain what happens to the median if we add an outlier with a very high value.
c) Explain what happens to the mean if we add an outlier with a very high value.
Education Spending
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| FREQUENCY | PERCENT | VALID PERCENT | CUMULATIVE PERCENT |
Valid | Too little About right Too much | 1111 281 95 | 24.6 6.2 2.1 | 74.7 18.9 6.4 | 74.7 93.6 100.0 |
Missing | Total NAP DK | 1487 3002 21 | 33.0 66.6 .5 | 100.0 |
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Total | Total | 3023
4510 | 67.0
100.0 |
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6) For the table below calculate the median (if the measure doesn’t apply, indicate so by answering “not applicable”)
Improving & Protecting Environment
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| FREQUENCY | PERCENT | VALID PERCENT | CUMULATIVE PERCENT |
Valid | Too little About right Too much | 506 178 37 | 33.7 11.9 2.5 | 70.2 24.7 5.1 | 70.2 94.9 100.0 |
Missing | Total NAP DK NA | 721 752 22 5 | 48.1 50.1 1.5 .3 | 100.0 |
|
Total | Total
| 779
1500 | 51.9
100.0 |
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- 10 years ago
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