Flashcards
STAB22 - Chapter 4 Flashcards
Cards in this deck (18)
- 1DistributionSlices up all possible values into equal width bins and gives the counts for each bin.
- 2HistogramUses adjacent bars to show distribution.
- 3GapRegion where there are no values.
- 4DotplotGraphs a dot for each case against a single axis.
- 5ShapeLook for the number of modes, symmetry or skewedness.
- 6CentreIncludes the mean and median.
- 7SpreadHow tightly the values are clustered around the centre - IQR and standard deviation.
- 8ModeHump in the shape of the distribution of a variable.
- 9UnimodalHaving one mode.
- 10UniformDistribution that's roughly flat.
- 11TailsParts of a distribution that trail off to either side.
- 12Left skewedWhen the tail is on the left.
- 13Right skewedWhen the tail is on the right.
- 14MeanPaired with the standard deviation.
- 15MedianPaired with the interquartile range (IQR).
- 16ResistantIs it affected by outliers?
- 17Interquartile rangeDifference between the first and third quartiles.
- 18Five number summaryData consisting of the minimum, Q1, median, Q3 and maximum.
Information
- Description
- STAB22 Flashcards on STAB22 - Chapter 4 Flashcards, created by andreaarose on 22/01/2014.
- Created by
- andreaarose
- Views
- 61
- Tags
- Rating