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A group of people were asked what condiments they use on their hot dogs. They were asked whether they use ketchup, mustard, both ketchup and mustard, or neither ketchup nor mustard.

The table shows the probabilities of the results.

 Use ketchup Do not use ketchup Total Use mustard 0.2 0.48 0.68 Do not use mustard 0.15 0.17 0.32 Total 0.35 0.65 1.00

Let A represent using ketchup and B represent using mustard.

Which statement is true?

Using ketchup and using mustard are independent events because P(A|B)≠P(A) and P(B|A)≠P(B) .

Using ketchup and using mustard are not independent events because P(A|B)≠P(A) and P(B|A)≠P(B) .

Using ketchup and using mustard are independent events because P(A|B)=P(A)P(A|B)=P(A) and P(B|A)=P(B) .

I chose this one someone please confirm ---> Using ketchup and using mustard are not independent events because P(A|B)=P(A) and P(B|A)=P(B) .

May 17, 2021

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I helped you on your last question and you have not bothered to respond yet.

Do you think this is polite?

Do you think this is a good way to make a good impression and thereby have an increased chance of getting help into the future?

May 17, 2021