graphs

Question 1

what is a histogram

Answer 1

the frequency of something
no graphs
likely to be used in continuous data

Question 2

what is a bar chart

Answer 2

one with gaps as it is not continuous

Question 3

what is a scattergraph

Answer 3

data points
frequency of variable
likely to be used when looking at relationships
show the strength and direction of correlations
can either positive or negative

Question 4

what does nominal mean

Answer 4

categorical data e.g colours

Question 5

what is ordinal data

Answer 5

continuous data that is a ranking

Question 6

what is interval data

Answer 6

numerical data with universal units

Question 7

what is normal distributions

Answer 7

A normal distribution is a type of continuous probability distribution that is symmetrical and bell-shaped, showing how values (like test scores or IQs) are spread out around the mean in a population.

Question 8

what is a skewed distribution

Answer 8

A skewed distribution is a type of non-symmetrical data distribution, where the data is not evenly spread around the mean.