graphs and distributions

Question 1

scattergram

Answer 1

show relationships between variables and are used when investigating a correlation

Question 2

histogram

Answer 2

used to represent continuous data

Question 3

bar chat

Answer 3

used to present non continuous data

Question 4

line graph

Answer 4

continuous data, each dot connected by a line

Question 5

normal distribution

Answer 5

classic bell shaped curve
- mean at peak

Question 6

skewed distribution

Answer 6

scores not distributed equally around mean

Question 7

positive skewed distribution

Answer 7

cluster of scores at lower end of data set
- mode less than median
- median less than mean

Question 8

negative skewed distribution

Answer 8

more scores towards hgiher end of data set
- mode in more than median
- median is more than mean