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3 years ago

14

What is 36=pt solve for t?

1 answer:

dlinn [17]3 years ago

8 0

36=pt solve for t,
divide both sides by p and that will give u
36/p = t
hope this helps,
brainliesg plz

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kramer

Answer:

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Step-by-step explanation:

The missing parameters are:

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$\mu = 20$ --- population mean

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Required

$P(x \le 21)$

First, calculate the sample standard deviation

$\sigma_x = \frac{\sigma}{\sqrt n}$

$\sigma_x = \frac{16}{\sqrt {64}}$

$\sigma_x = \frac{16}{8}$

$\sigma_x = 2$

Next, calculate the sample mean $\bar_x$

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So, we have:

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$x = \frac{x - \mu}{\sigma}$

$x = \frac{21 - 20}{2}$

$x = \frac{1}{2}$

$x = 0.50$

So, we have:

$P(x \le 21) = P(z \le 0.50)$

From the z table

$P(z \le 0.50) = 0.69146$

So:

$P(x \le 21) = 0.69146$

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