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steposvetlana [31]
4 years ago
8

-1/3(n+15)=-2, what is n

Mathematics
1 answer:
OlgaM077 [116]4 years ago
3 0
<span>-1/3(n+15)=-2
Use distributive property
-1/3n - 5=-2
Add 5 to both sides
-1/3n=3
Divide -1/3 on both sides
Final Answer: n=-9</span>
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        The population mean is \mu  =  12 \ oz

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Given that the can’s contents follow a Normal distribution then then  the probability that the mean contents of a six-pack are less than 12 oz is mathematically represented as

         P(X <  12) =  P ( \frac{X - \mu }{ \sigma_{\= x }}  < \frac{\= x - \mu }{ \sigma_{\= x }}  )

Generally  \frac{X  - \mu }{ \sigma_{ \= x }}   =  Z (The  \ standardized \  value \ of  \ X )

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substituting values

       P(X <  12) =  P ( Z < \frac{12.2 -12 }{0.0408}  )

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From the normal distribution table the value of P ( Z < 2.45   ) is  

           P (Z < 2.45)0.99286

=>   P(X <  12) =  0.99286

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