Data Analysis: Graphs

Question 1

tables

Answer 1

raw scores are converted to descriptive stats and summarised in a table

Question 2

bar charts

Answer 2

discrete categorical data represented for clear comparison
the frequency of each category is the height of the bar

Question 3

scattergrams

Answer 3

shows the strength and direction of a relationship between co-variables

Question 4

normal distribution

Answer 4

bell curve
mean, median and mode at the same point
tails never touch zero

Question 5

skewed distributions

Answer 5

negative skew leans right
positive skew leans left