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Maru [420]
3 years ago
7

If it takes 4 workers 6 hours to paint a fence, how long would it take 8 workers

Mathematics
2 answers:
nata0808 [166]3 years ago
8 0
It would take 8 workers 3 hours
Stolb23 [73]3 years ago
4 0

Answer:

3 workers

Step-by-step explanation:

just divide by 2

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Step-by-step explanation:

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Answer with Step-by-step explanation:

Since the given event is binary we can use Bernoulli's probability to sove the problem

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Part a)

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P(E)=\frac{11!}{(11-9)!\cdot 9!}\cdot (0.75)^{9}\cdot (1-0.75)^{11-9}\\\\\therefore P(E)=0.2581

Part b)

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Applying values we get

P(E)=\frac{20!}{(20-16)!\cdot 16!}\cdot (0.75)^{16}\cdot (1-0.75)^{20-16}\\\\\therefore P(E)=0.1896

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Step-by-step explanation:

 

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