e-Module 3

Question 1

What three elements are required when constructing a table or figures?

Answer 1

1. Title
2. Labelled axes (include units)
3. Legend

Question 2

Why might you have asterisks in figures?

Answer 2

To denote significance

Question 3

What should always be the first line of a legend?

Answer 3

The title of the table or figure

Question 4

How should tables be laid out?

Answer 4

So that they are read from up to down not across

Question 5

When presenting data to show the difference in incidence of a particular scenario between two groups (discrete), what type of graphs do you use (3 possibilities)?

Answer 5

Bar chart, dot plot and box and whiskers plot.

Question 6

What graphs may determine whether data is normally distributed (2 possibilities)?

Answer 6

Histogram and box and whiskers plot.

Question 7

When looking at a correlation between two sets of continuous quantitative data, what method of graphical presentation is most appropriate?

Answer 7

Scatter plot

Question 8

For pie charts what sort of data is the x-variable and the y-variable?

Answer 8

x- categorical

y- counted quantitative

Question 9

For bar charts what sort of data is the x-variable and the y-variable?

Answer 9

x- categorical

y- counted quantitative

Question 10

Why are bar-charts preferred over piecharts?

Answer 10

Can see data distribution and measures of centrality

Question 11

For histograms what sort of data is the x-variable and the y-variable?

Answer 11

x- continuous quantitative

y- counted quantitative

Question 12

For dot-plots what sort of data is the x-variable and the y-variable?

Answer 12

x- categorical

y- continuous quantitative

Question 13

For box and whisker plots what sort of data is the x-variable and the y-variable?

Answer 13

x- categorical

y- continuous quantitative

Question 14

For scatter plots what sort of data is the x-variable and the y-variable?

Answer 14

x- continuous

y- continuous

Question 15

Why are dot plots better than bar charts?

Answer 15

Shows data dispersion

But only good for small samples

Question 16

Which sort of data are box-and-whisker plots mainly used for?

Answer 16

For non-parametric over parametric (shows median)