WEEK 7- 13.1 data management and visualization

Question 1

nominal

Answer 1

mutually exclusive, exhaustive, equivalent (not higher or lower)
ethnicity

Question 2

ordinal

Answer 2

rank ordering on some dimenson

strongly agree

Question 3

interval

Answer 3

precise measurement units with arbitary 0

Question 4

ratio

Answer 4

precise measurement units with absolute zero point

zero is meaningful

Question 5

descriptive summary of individual variables

Answer 5

univariate data analysis

Question 6

use: ? for univariate data analysis

Answer 6

frequency tables, histograms, bar charts

Question 7

statistics: ? for univariate

Answer 7

measures of dispersion: mean, median, mode, range, sd

Question 8

use:? for bivariate data analysis

Answer 8

crosstabs, scatterplots, bar charts

Question 9

statistics:? for bivariate analysis

Answer 9

chi square, t test, one way anova, correlation

Question 10

statistics:? for multivariate analysis

Answer 10

anova, linerar and logistic regressions

Question 11

when are bar charts useful?

Answer 11

cross sectional data

Question 12

whan are line charts useful?

Answer 12

time series data