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preity:
guys help me out....ok da question is like this
 In a group of 50 people,25 own a car,15 own a bicycle and 5 own both a car and a bicycle.If a person is chosen at random,find the probability that they:
a)own either a car or a bicycle but not both(how to answer question with the word BUT NOT BOTH)
b)own a bicyle given that they own a car.....

astarmathsandphysics:
40 altogether own car bike or both and of these 5 own both so 35 own only car or bike
35/50
B)5/15 since 5 of the 15 that own a bike also own a car

astarmathsandphysics:
I meant 5/25 for b since 5 out the 25 that own a car also own a bike

preity:
thanks ya.... ;D

ocean:
heyy how do v do the followng question??

In country A 30% of people who drink tea have sugar in it. In country B 65% of people who drink
tea have sugar in it. There are 3 million people in country A who drink tea and 12 million people in
country B who drink tea. A person is chosen at random from these 15 million people.
(i) Find the probability that the person chosen is from country A. [1]
(ii) Find the probability that the person chosen does not have sugar in their tea. [2]
(iii) Given that the person chosen does not have sugar in their tea, find the probability that the person
is from country B.

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