0.17. Representing quantitative data Flashcards
1
Q
What is a table for?
A
- usually already written for you to have to interpret the data, using the data to justify what it shows
- refer to both IVs (conditions) and the DV (measurement)
2
Q
What is a bar chart for?
A
- used to display a test of difference
- Y axis is the DV (measurement)
- X axis is the IV (2 conditions)
- 4 marks = title, IV labels, DV labelled, bars are accurate
3
Q
What is a scattergram for?
A
- used to display a relationship/ correlation
- variables plotted on the X and Y, plotted by an x
- no line is required- DO NOT JOIN UP OR DRAW LINE OF BEST FIT
4
Q
What is a histogram for?
A
- used for continuous data (interval data e.g. age time, temp)
- no gap, bars touch
5
Q
What is distribution for?
A
- used to represent how traits are represented in the population
6
Q
What is normal distribution?
A
- even curve
- Median, mean, mode-> close together
7
Q
What is positive skewed distribution?
A
- mean is larger than the mean and mode (hard test)
- mode, median, mean
- larger = further across x axis
8
Q
What is a negative skewed distribution?
A
- mean is smaller than the median and mode (easy test)
- mean, median, mode