Question

The following table provides asthma data for 200 randomly selected Berkeley residents.

	Asthma	No Asthma	total
Vegetarian	20	60	80
Meat Eater	50	70	120
total	70	130	200

Find:

P(asthma | vegetarian) =

P(asthma) =

P(asthma | meat eater) =

P(meat eater | asthma) =

Answer 1

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Answer:

1)

P(asthma | vegetarian) = Number of people with Asthma and Veg/ Total people

= 20/200 = 0.1

2)

P(asthma ) = Number of people with Asthma/ Total people

= 70/200 = 0.35

3)

P(asthma | meat eater) = Number of people with Asthma and eating mear/ Total people

= 50/200 = 0.25

4)

P(meat eater | asthma) = Number of people with Asthma and eating mear/ Total people

= 50/200 = 0.25