Distributions

Question 1

What are distributions?

Answer 1

Refers to the way the data is plotted/ spread across a graph. It refers to where the mean, median and mode lie within a set of data.

Question 2

What does a normal distribution reflect?

Answer 2

• A bell shape
• Always symmetrical
• Never touches zero
• The mean, median and mode occupy the same point (the highest point)

Question 3

What is a skewed distribution?

Answer 3

The spread of data that is not symmetrical, the data is clustered at one end rather than the middle

Question 4

What is a positively skewed distribution?

Answer 4

When the majority of the data is clustered to the left of the graph.

Question 5

Where does the mode lie in positive skews?

Answer 5

The mode is always at the highest point as its the most occurring. On a positive skew more people scored lower so it would peak on the left.

Question 6

What is a negatively skewed distribution?

Answer 6

When the majority fo the data is clustered at the right of the graph.

Question 7

Where does the mode lie in negative skews?

Answer 7

The mode is always at the highest point as its the most occurring. On a negative skew more people scored higher so it would peak on the right.