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PLEASE HELP!! (only need answers to B and C)

PLEASE HELP!! (only need answers to B and C)-example-1
User Zecrates
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4 votes
Answers:
(b) 4/9 (0.44)
(c) The events are not independent.

Explanations:
(b) The probability of hamburgers given diet soda is:
P(hamburgers | diet soda) = 40/90 = 4/9 (0.44)

(c)
P(hamburgers) = 130/250 = 13/25
Whereas
P(diet soda) = 4/9

(4)/(9) \\eq (13)/(25)

Since both probabilities are not equal, hence the events are not independent.

ALWAYS REMEMBER: Events are independent if their probabilities are equal.
-i
User Eric Skroch
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8.2k points

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