Friday
March 27, 2015

Homework Help: Probability

Posted by Anonymous on Friday, February 28, 2014 at 7:59pm.

Clara Nett is quite good and figures that her probability of playing any one note right is 99%. The solo has 60 notes.

a. What is her probability of each of the following?
1. Getting every note right.
My answer: 0.547

I am stuck on problems 2-5 because when I set up the nCx I got 0 for all the answers which is not sensable.....
2. Making exactly one mistake
3. Making exactly two mistakes
4. Making at least two mistakes
5. Making more than two mistakes
b. What must be Clara's probability of getting any one note right if she wants to have a 95% probability of getting all 60 notes right?
Is this the correct set up ?

x^60=0.95
My answer: 0.9991454771

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