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sladkih [1.3K]
3 years ago
10

Find cos(sin-1(3/5))

Mathematics
1 answer:
melamori03 [73]3 years ago
5 0
Cos(sin⁻¹(³/₅))
cos(36.87)
0.79
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Step-by-step explanation:

As per given description, we have

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z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}\\\\\\=\dfrac{0.312-0.35}{\sqrt{\dfrac{0.35(1-0.35)}{500}}}\\\\=-1.78146747757\ \ \text{(Simplified)}\\\\\approx-1.78

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