2 years ago

How do you tell if a table is linear

Mathematics

1 answer:

Phantasy [73]2 years ago

3 0

Answer:

If x, y increase at a constant rate, it is linear.

Step-by-step explanation:

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700 / 10 = 70

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2 years ago

45% of 40 is 18% of what number?

alexandr1967 [171]

So 45% OF 40 is
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3 years ago

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A recent poll of 700 people who work indoors found that 278 smoke. if the researchers want to be 98% confident of their results

Mice21 [21]

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We are given:

$\hat{p}=\frac{278}{700}=0.397$

$z_{\frac{0.02}{2}}=2.33$ is the critical value at 0.02 significance level

$E=0.035$ is the margin of error

Therefore, the required sample size is:

$n=\hat{p}(1-\hat{p}) \left(\frac{z_{\frac{0.02}{2}} }{E} \right )^{2}$

$=0.397(1-0.397) \left( \frac{2.33}{0.035} \right)^2$

$=0.239391 \times 4431.755102$

$=1060.922286 \approx 1061$

Therefore, the required sample size n = 1061

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3 years ago