In the checkout line, a customer has two coupons for the same item. one is 13 off, and the other is 12 off. which coupon will give the customer the biggest discount?

13 off

Step-by-step explanation:

13 is a larger number than 12, so a discount of 13 is more discount than a discount of 12.

If one is "dollars" and the other is "percent", then the relative value depends on the value of the item being purchased.

answer: the answer is 35%

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.