The follovwing two-way table shows the distribution of a random sample of travelers and their preferences for
accommodations and method of travel.
Suppose a traveler is selected from this sample at
random. Let event A= home sharing and event B = fly.
Are events A and B independent?
Method of Travel
O No, P(A) = P(AJB).
O No, P(A) P(B|A).
O Yes, PA) = P(A|B).
O Yes, PA) P(BIA).
Drive
Fly
Total
Home
Sharing
16
20
Hotel
64
16
80
Total
80
20
100

22 and 22

step-by-step explanation:

10 plus 12 equals 22.

12 plus 10 also equals 22 because regardless of what order they're in, they're gonna equal the same thing.

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.

h/o/e/s mad

step-by-step explanation:

si si si

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