Please explain steps? Thank you. QUESTION 13 KEY Region 1 = NW Region 2 SW Regio

Question

Please explain steps? Thank you.

QUESTION 13 KEY Region 1 = NW Region 2 SW Region 3 -NE Region 4 = SE Population -Under 50,000 Popidation 2 = 50.000-100.000 Popl(lation 3 = Over 100.000 Count of Population Region Total Population 34 36 35 105 144 151 155 450 38 34 27 35 96 38 37 130 48 119 Total: Big Burger is a fast food restaurant that has 450 locations all over the U.S. Use the excel output above to answer the following question. Let event A - Selected restaurant is not in the northeast B - Selected restaurant is in a city with a population size between 50,000 and 100,000 Events A and B are

Explanation / Answer

Ans:

P(A and B)=P("not in north east" and "50000-100000")

=(36+55+33)/450

=0.2756

P(A)=P(not in north east)=1-(96/450)=0.7867

P(B)=P(50000-100000)=151/450=0.3356

P(A)*P(B)=0.7867*0.3356=0.2640

As,P(A and B) is not equal to P(A)*P(B),so A and B are not independent events.

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