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3 years ago

VERY URGENT! please help me find the answer i dont have long

Mathematics

1 answer:

Burka [1]3 years ago

7 0

Answer:

16+16=32

Step-by-step explanation:

First find the are of the bottom box

8x2=16

Then find the remaining area of the height

10-2=8

8x2=16

Then add the two values

16+16=32

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

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Marat540 [252]

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What are the chances your flight will leave on time? Below are a histogram and summary statistics for the percentage of flights

Jet001 [13]

Answer:

80.0456< $\bar x$ <81.1210

Step-by-step explanation:

-Given the mean, $\bar y=80.5833$ and $s=2.77369$ , the confidence interval can be calculated using the formula:

$\bar x\pm z\times \frac{\sigma}{\sqrt{n}}$

#We substitute our values in the formula to solve for CI:

$=\bar x\pm z\times \frac{\sigma}{\sqrt{n}}\\\\=\bar y\pm z_{0.05}\times \frac{s}{\sqrt{72}}\\\\=80.5833\pm 1.645\times \frac{2.77369}{\sqrt{72}}\\\\=80.5833\pm0.5377\\\\=[80.0456,81.1210]$

Hence, the confidence interval lies between 80.0456 and 81.1210

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