Data Analysis-graphs

Question 1

what is descriptive statistics

Answer 1

ways of representing data

Question 2

when do we use a bar chart

Answer 2

when data is divided into categories- discrete data

Question 3

what are the types of graphs

Answer 3

• tables
• bar charts
• scatter grams
• line graphs

Question 4

what are histograms

Answer 4

bar charts but bars touch each other to show the data is continuous and not discrete

Question 5

what are line graphs

Answer 5

represent continuous data and use pints connected by lines to show how something changes in value over time

Question 6

what are scattergrams

Answer 6

show associations between variables