A store manager wishes to investigate whether there is a relationship between the type of promotion offered and the number of customers who spend more than $30 on a purchase. Data will be gathered and placed into the two-way
table below.
Customer Spending by Promotion Run
Customers
Spending
More than $30
Customers
Spending
$30 or Less
$10 off $50
15% off
$5 off $25
Buy-1-Get-1 Half Off
Which statement best describes how the manager can check if there is an association between the two variables?
O The manager must check relative frequencies by row because there are more than two different promotions.
O The manager must check relative frequencies by column because there are more than two different promotions.