Question

question 1
if x and y are two quantitative variables, one way to identify whether there is a relationship between them is to:

□ a. calculate the correlation between x and y.
□ b. draw a bargraph of the x and y values.
□ c. make a two - way table of the x and y values.
□ d. all of the answer options are correct.
□ e. draw a scatterplot between the two variables

Explanation:

• A bar graph (option b) is used for categorical data, not for showing the relationship between two quantitative variables.
• A two - way table (option c) is used for categorical data (to show the frequency distribution of two categorical variables).
• Calculating the correlation (option a) and drawing a scatterplot (option e) are valid ways to identify a relationship between two quantitative variables. Since option d claims all options are correct, and options b and c are incorrect, option d is wrong.

Answer:

a. Calculate the correlation between X and Y, e. Draw a scatterplot between the two variables