Use the table below to answer the following questions:

 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 Total Total 8 1500 .5 100.0

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

 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 Missing Total DK NA 4333 154 23 Total 177 4510 100.0

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

 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

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

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

 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 Total Total 3023 4510 67.0 100.0

6) For the table below calculate the median (if the measure doesn’t apply, indicate so by answering “not applicable”)

Improving & Protecting Environment

 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