I am having a tough time getting the correct values for these questions. Help an

Question

I am having a tough time getting the correct values for these questions.

Help and thanks =D

Warranty Type Out of Date 30 42 18 90 Extended 146 203 Standard 110 286 362 US Manufactured Foreign Unsure 52 279 356 725 What is the probability that a randomly-selected person in the data pool has a car that: 1. Was definitely not manufactured in the US? (5 pts) Answer Here 2. Has a warranty that is out of date? (5 pts) Answer Here 3. Was definitely not manufactured in the US and has an out-of-date warranty? (5 pts) Answer Here 4. Was definitely not manufactured in the US or has an out-of-date warranty? (20 pts) Answer Here Carefull 5. Has an extended warranty given that we are unsure where it was manufactured? (10 pts)Answer Here 6. We are unsure where it was manufactured given that it has an extended warranty? (10 pts)Answer Here

Explanation / Answer

1. P(Not in US) = 1 - 286/725 = 439/725 = 0.6055

2. P(Out of date) = 90/725 = 18/145 = 0.1241

3. P(Not in US and out of date) = (42 + 18)/725 = 60/725 = 12/145 = 0.0828

4. P(Not in US or out of date) = P(Not in US) + P(Out of Date) - P(Both) = 469/725 = 0.6469

5. P(Extended warranty | Unsure) = 7/77 = 1/11 = 0.0909

6. P(Unsure | Extended Warranty) = 7/356 = 0.1097

Note - All the answers have been rounded to 4 decimal places.

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