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JulijaS [17]
3 years ago
12

Mel drove 230 miles in 4 hours an pia drove 230 miles in 5 hours who drove faster?

Mathematics
1 answer:
babunello [35]3 years ago
5 0
Mel drove faster because they drove the same amount of miles (230) but Mel drove that in 4 hours and pia drove that in 5 hours so in conclusion Mel drove faster
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Answer:

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Answer:

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Step-by-step explanation:

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3 years ago
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Zielflug [23.3K]

Answer:

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Step-by-step explanation:

From the question we are told that

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     The random variable  considered is  x  =  15

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Now the mean is mathematically evaluated as

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The standard deviation is mathematically represented as

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=>  \sigma  =  \sqrt{3000 *  0.005 * (1 - 0.005 )}

=>   \sigma  =  3.86

Now given that n is very large, then it mean that we can successfully apply normal approximation on this  binomial distribution

So

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Now  applying  Continuity Correction we have

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From the z-table  

       P(Z >-0.130 )  =0.5

Thus  

    P(X \ge  15) =  0.5

 

   

7 0
3 years ago
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Answer:

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neonofarm [45]
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