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June 29th, 2011, 08:38 PM   #1
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Probability - Languages in Canada

Language English French Asian/ Pacific Other
Probability 0.63 0.22 0.06 0.09

A) What is the probability that a Canadian's mother tongue is not English?
hunnybee is offline  
June 29th, 2011, 11:34 PM   #2
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Re: Probability - Languages in Canada

I m telling u few important steps to solve the questions of probability.
a. Probability of anything is always less than or equal to the 1. That means it never exceed 1.
b. If any question come like not of then learn a formula
P(not)= 1- P(that thing)
it might seem difficult to u but i apply it now then it clarify to u.

Ur question is that people in Canada uses is English = 0.63
uses french=0.22
uses asian =0.06
uses pacific =0.09
In question they ask the probability of not using english . So, firstly we calculate the probability of using english.
Probability of English P(E)= number of people speak english / total languages used in canada
Now, not using english probality is P(Not E)= 1-0.63 (SECOND RULE IS APPLIED HERE)
P(Not E) = 0.37 (See here probability is less than one that means first rule applied here so answer is right)
navdeep is offline  

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