The following bar chart for these data shows
A) the marginal distribution of brands
B) the conditional distribution of brands
C) the marginal distribution of gender
D) the conditional distribution of gender
E) the joint distribution of brands

Question

The following bar chart for these data shows 
A) the marginal distribution of brands 
B) the conditional distribution of brands 
C) the marginal distribution of gender 
D) the conditional distribution of gender 
E) the joint distribution of brands

Quizplus · Accepted Answer

A marginal distribution shows the frequency or proportion of each category for a single variable, regardless of the other variables. The bar chart shows the frequency of each brand, so A is correct. It also shows the frequency of males and females, so C is also correct. The chart does not provide information to calculate the conditional distributions, which would require analyzing the relationship between brands and gender. The joint distribution would require knowing the frequency of each combination of brand and gender, which is not provided by the chart.

The Following Bar Chart for These Data Shows