One kilometer is approximately 31/50 mile. what decimal represents this length?

Mathematics

1 answer:

ollegr [7]2 years ago

7 0

0.62

31X2=62
50X2=100
62 divided by 100 is 0.62

Hope that helps! :)

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b) The probability that <em>at least</em> 3 people arrive during a particular hour is:

$P(x\geq3)=1-[P(x=0)+P(x=1)+P(x=2)]\\\\\\P(0)=6^{0} \cdot e^{-6}/0!=1*0.0025/1=0.002\\\\P(1)=6^{1} \cdot e^{-6}/1!=6*0.0025/1=0.015\\\\P(2)=6^{2} \cdot e^{-6}/2!=36*0.0025/2=0.045\\\\\\P(x\geq3)=1-[0.002+0.015+0.045]=1-0.062=0.938$