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3 years ago

Why is this binomial and what is the answer?

Mathematics

1 answer:

pashok25 [27]3 years ago

5 0

Answer:

2e⁻² ≈ 0.271

Step-by-step explanation:

This is actually a Poisson distribution. The probability is:

P(x; μ) = e^(-μ) (μˣ) / x!

P(2; 2) = e⁻² (2²) / 2!

P(2; 2) = 2e⁻²

P(2; 2) ≈ 0.271

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\\
\\(\frac{64}{t} +13)(t-3)=105 
\\
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\\
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\\
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\\
\\t_{1,2}= \frac{80\pm \sqrt{(-80)^2-4\times13(-192)} }{2\times13}= \frac{80\pm128}{26} 
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Doreen: rate = 8 mph, time = 8 hours
Sue: rate = 21 mph, time = 5 hours

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3 years ago

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