Research Skills Flashcards
what is a parametric dataset?
normally distributed data = mode, median and mean are all the same value (mean is the centre of the data)
what is relationship between the mode, median and mean in a parametric dataset?
they are the same
what is the centre of the data in a parametric dataset?
mean
what is the centre of the data in a parametric dataset?
mean
what is a non-parametric dataset?
abnormally distributed dataset
what is the relationship between mean, mode and median in non-parametric dataset?
not the same
what is the relationship between mean, mode and median in non-parametric dataset?
not the same
what measure is the peak of the graph in a non-parametric dataset?
mode
where do you find the mean in a non-parametric dataset?
at the point at which the graph begins to plateau
where do you find the median in a non-parametric dataset?
mid-point between mode and mean
what shape is normal distribution?
bell shaped curve
what shape is postively skewed distribution?
distribution is clustered around left hand side
what shape is negatively skewed distribution?
distribution is clustered around the right hand side
what shape is normal distribution?
same distribution throughout
what shape is bimodal distribution?
data set with 2 peaks
