presentation of quantitative data

Question 1

scattergram

Answer 1

a type of graph that represents the strength and direction of the relationship between co variables in a correlational analysis.

Question 2

bar chart

Answer 2

a type of graph in which the frequency of each variable is represented by the height of the bars. Used when data is divided into categories

Question 3

histogram

Answer 3

a type of graph which shows frequency but unlike a bar chart, the area of the bars(not just height) represents frequency. The X axis must start at true 0 and scale is continuous. Y axis represents frequency

Question 4

normal distribution

Answer 4

a symmetrical spread of frequency data that forms a bell shaped pattern. the mean median and mode are all located at the highest peak. Most people are located in the middle

Question 5

skewed distribution

Answer 5

a spread of frequency data that isn’t symmetrical, where the data clusters to one end

Question 6

positive skew

Answer 6

most of the distribution is concentrated towards the left of the graph, resulting in a long tail to the right. Mode remains and the hugest point but mean is dragged out to the right. Median lies in-between

Question 7

negative skew

Answer 7

a type of frequency distribution in which the long tail is on the left (negative) side of the peak and most of the distribution is concentrated on the right