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dedylja [7]
3 years ago
15

Help me and be BRAINEST!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
lakkis [162]3 years ago
5 0

1.the flight from Baltimore to Miami is 2 hours and 35 minutes

2.the flight to Boston from Baltimore is the shortest.

Miami = 2hrs 35min

Boston = 1hr 15min

Atlanta = 1hr 55min

Indianapolis = 1hr 40min

Arada [10]3 years ago
5 0

My Answer: 2.58 hours or 2 hours and 35 minutes

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The owners of an eyeglass store claim that they fill customers' orders, on average, in 60 minutes with a standard deviation of 1
melomori [17]

By applying z-score formula we got that if a reporter determines a mean order time of 63 minutes then value o Z is 1.19

<h3>What is standard deviation?</h3>

Standard deviation is a number used to tell how measurements for a group are spread out from the average (mean), or expected value

Here given that

The owners of an eyeglass store claim that they fill customers' orders, on average, in 60 minutes with a standard deviation of 15. 9 minutes. Based on a random sample of 40 orders, a reporter determines a mean order time of 63 minutes

mean=μ=60

standard deviation=σ=15.9

number of sample=n=40

\bar{x}=63 \\

Now we can calculate z by z-score formula as

z=\frac{\bar{x}-\mu}{\frac{\sigma}{\sqrt{n}}}  \\\\&=\frac{63-60}{\frac{15 \cdot 9}{40}} \\ \\=\frac{3}{2.5140} \\ \\=1.19\end{aligned}

By applying z-score formula we got that if a reporter determines a mean order time of 63 minutes then value o Z is 1.19

To learn more about standard deviation visit :brainly.com/question/12402189

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What are the next two numbers? 0.03 0.12 0.21 ... ...
iris [78.8K]
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Write the number described by 1 ten 16 one
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Answer:

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