After grading, the professor notices that Alice and Bob forgot to put their names on their exams. One of their exams was done well and the other was done poorly. Given this information, and assuming that they worked independently of each other, what is the probability that the good exam belongs to Alice? (Give the exact answer.)

The probability that the good exam belongs to Alice could be infered from the handwriting of the answer sheet. This s because, previously, the professor would have given them assignments which they submitted.

In the ones he marked, he was able to note the style of writing of alice and her good grades. Therefore, the style of writing (Handwriting ) in the exams with good grade will help him to determine that it belongs to Alice.

Step-by-step explanation:

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.

they charge the same amount at 20 minutes.

step-by-step explanation: