3 years ago

Please help i give extra pts

Mathematics

1 answer:

grin007 [14]3 years ago

6 0

Answer:

3:1 2:3 1:4 4:2

Step-by-step explanation:

I had the same one on my quiz

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A) For A our $\hat{p}$ (proportion) is equal to 0.45. So applying the formula,

$E=1.96*\sqrt{\frac{0.45(1-0.45)}{900}}$

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B) We make the same of point A, but change our proportion to 0.35

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c) We need to calculate the SE through proportion for 0.1, that is

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Then our Error is given by,

$E=z*SE$

$E=1.96*\sqrt(0.45*\frac{0.55}{900}+0.35\frac{0.65}{900}$

$E=0.045$

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3 years ago

For f(x)=2x − 3 , for what value(s) of x does f(x) = 13?

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