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anonymous
 one year ago
Suppose 80% of kids who visit a doctor have a fever, and 25% of kids with a fever have a sore throat. What's the probability that a kid who goes to the doctor has a fever and a sore throat?
anonymous
 one year ago
Suppose 80% of kids who visit a doctor have a fever, and 25% of kids with a fever have a sore throat. What's the probability that a kid who goes to the doctor has a fever and a sore throat?

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amina_soneviseth
 one year ago
Best ResponseYou've already chosen the best response.1To find compound probabilities like this multiply the individual probabilities. For instance toss a coin twice what are the odds of heads both times? (1/2)(1/2)=1/4 So rewrite your percentages as fractions or decimals and multiply to get your answer.

amina_soneviseth
 one year ago
Best ResponseYou've already chosen the best response.1yes and make it a percentage. :D PLEASE GIVE MEDALS IF THIS HELPED

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0can you help me with 1 more question I'll give you a bunch of medals!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0a card is drawn at random from a standard deck of 52 cards find the following conditional probabilities a)the card is a spade given that it is black b)the card is black given that it is a spade c) the card is a queen given that it is black d) the card is a jack given that it is a face card

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I have a hard time with these "given that" problems

amina_soneviseth
 one year ago
Best ResponseYou've already chosen the best response.1@tofusoup a.)becuase theres like 13 black spades in a deck IF THIS HELPED MEDAL AND FAN TY!

ybarrap
 one year ago
Best ResponseYou've already chosen the best response.0"Given That" problems mean that you ignore all other possibilities and treat only that particular subset of events. For example, given that a)the card is a spade given that it is black we take as the only possible events, the black cards. Of these black cards, how many are spades? If there are x black cards and y of these are spades, then the probability of y given x is just \(\cfrac{y}{x}\).
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