Thursday, June 24, 2010

How do I work this math (probability) problem?

In a survey of 896 people, 409 responded that their second toes are longer than their big toes. What is the probability that a randomly chosen person from the survey has a longer second toe?





It's problem #19 in lesson 7.8 in the green McDougal Littel Course 3 mathbook.





I need to know how to work it, not the answer.How do I work this math (probability) problem?
sample space=896


favourable event=409


probability=409/896How do I work this math (probability) problem?
You have a total of 896 out that 409 responded that they have their long toes longer than their big toes. Therefore if one is selected at random the probability is P( second toes longer than big toes) = 409/896. That is all there is to it. It is a fraction problem
#1) 409/896=???


#2) since it is probability you want percent so you multiply by 100
In this case, the Probability is basically (# people a certain way) / (total # of people).





So 409 / 896. Then use a calculator! :pp
If I understand correctly, you should just be able to take 409 and divide it by 896 to get the answer.

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