Distributions

Question 1

What are Distributions?

Answer 1

• A type of histogram

- Shows the frequency of a characteristic to illustrate the mean and the spread of data

Question 2

What is a Normal Distribution?

Answer 2

• Occurs when the majority of scores are close to the mean with a decreasing number above or below the mean
• Data is roughly symmetrical
• Data forms a bell curve
• Mean, median and mode normally the same

Question 3

What is Positively Skewed Distribution?

Answer 3

• Occurs when there is a cluster of scores around the lower end of the data set
• The curve has a tail on the right
• The mean is higher than the median and mode
• Most scores are below the mean

Question 4

What is Negatively Skewed Distribution?

Answer 4

• Occurs when there is a cluster of scores around the higher end of the data set
• The curve has a tail on the left
• The mean is lower than the median and mode
• Most scores are above the mean