Summarising The Data Flashcards
(9 cards)
1
Q
What are tables good at showing?
A
Quantitative data
2
Q
What are line graphs good for showing?
A
More than one set of data
3
Q
What are bar charts good at showing?
A
Non-continuous data (when the variable is a category)
4
Q
What can scattergrams tell you?
A
If two variables are related
5
Q
What are histograms good at showing?
A
Continuous data
6
Q
People doing revision right now:
Boys = 36
Girls = 24
Find the percentage who are boys
A
Find the total number of people
36 + 24 = 60
Then… (36\ 60) x 100 = 60%
7
Q
Why do you need statistical significance?
A
Because you can never prove a hypothesis is 100% true
8
Q
What does it mean if your results are not statistically significant?
A
They are probably down to chance
9
Q
What is a null hypothesis?
A
The prediction you want to test
