1. Probability that a female student is wearing a backpack.???

STAT 1430 Recitation 3D Suppose you choose a student at random and you note gender and whether they are wearing a backpack. Write the notation for each of the following. For example P(A), P(A|B), P(A and B). Note, some may have the some answers, but dierent wording, as you nd in the media. 1. Probability that a female student is wearing a backpack. 2. Probability that a student who is wearing a backpack is a female. 3. Probability that a student is wearing a backpack and is female. 4. Probability that a student is male IF they are wearing a backpack. Suppose 40% of your customers have debit cards, and of those customers, 60% use credit cards. You also know that of your customers who don 't have debit cards, 80% use credit cards. Lei D=debit card, ND 2 no debit card, C:credit card users and NC =non-oredit card users. 5. Fill in the table using only probability notation, for example P(D) or P(ND and C) or P(D|C). DO NOT CALCULATE ANYTHING 0R SHOWANYFOWULAS. Credit Card No Credit Card Total Debit card No debit card Total 6. Now using the M ULT IPLICAT ION RULE (see lecture notes), ll in the appropriate numbers in all parts of the table below. Show all formulas, notation, and calculations for the 4 cells in the table. Then just sum to get the marginal totals. (Work next page) Credit Card No Credit Card Total Debit card No debit card Total 4: . u u u u 14. m u u _. 11 CE) Dashboard Calendar E To Do Q Notifications Qinbox