1. If a selected restaurant is in a city with a population size between 50,000 a

Question

1. If a selected restaurant is in a city with a population size between 50,000 and 100,000, what is the probability the restaurant is in the north?

2.

Count of Population Region Population 1 2 3 4 Grand Total 1 39 34 40 41 154 2 42 30 35 44 151 3 31 56 33 25 145 Grand Total 112 120 108 110 450 KEY Region 1 = NW Population 1 = Under 50,000 Region 2 = SW Population 2 = 50,000 - 100,000 Region 3 = NE Population 3 = Over 100,000 Region 4 = SE

1. If a selected restaurant is in a city with a population size between 50,000 and 100,000, what is the probability the restaurant is in the north?

2.

What is the probability a selected restaurant is not in the southeast and in a city with a population size under 50,000?

Explanation / Answer

from given data:

1) probability the restaurant is in the north(1 or 3) ; given  population size between 50,000 and 100,000 (2)

=(42+35)/151=0.5099

2) probability a selected restaurant is not in the southeast and in a city with a population size under 50,000

=(39+34+40)/450 =0.2511

Region Count of Population 1 2 3 4 Grand Total 1 39 34 40 41 154 2 42 30 35 44 151 3 31 56 33 25 145 Grand Total 112 120 108 110 450

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