45 own more than one pet 60 own a dog 40 that own more than

45% own more than one pet

60% own a dog

40% that own more than one pet own a dog.

if you select one, what are the chances they don\'t have a dog, and what are the chances they have more than one pet given they have a dog

Solution

So the chances they own one pet and it\'s not a dog is

P(they own one pet and it\'s not a dog | has a dog)

=P(they own one pet and it\'s not a dog and has a dog) / P(has a dog)

=0/0.6

=0

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The chances they own more than one pet is

0.45