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3 years ago

If you know how to solve this, Please answer it. Thank You

Mathematics

1 answer:

spayn [35]3 years ago

8 0

Answer:

Step-by-step explanation:

x1 = 20 ; y1 = 12

x2 = ? ; y2 = 5

$\frac{x_{1}}{x_{2}}=\frac{y_{2}}{y_{1}}\\\\\frac{20}{x_{2}}=\frac{5}{12}\\\\20 *12 = x_{2}*5\\\\\frac{20*12}{5}=x_{2}\\\\4*12=x_{2}\\\\x_{2}=48$

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3 years ago

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steposvetlana [31]

Answer:

0.3907

Step-by-step explanation:

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So, $P(x\leq 3)=P(x=1)+{P(x=2)+P(x=3)$

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$P(x\leq 3)=\frac{11!}{1!(11-1)!} (0.36)^1 (0.64)^{11-1}+\frac{11!}{2!(11-2)!} (0.36)^2 (0.64)^{11-2}+\frac{11!}{3!(11-3)!} (0.36)^3 (0.64)^{11-3}$

$P(x\leq 3)=0.390748$

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3 years ago

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3 years ago

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