3 years ago

Please help me solve this

Mathematics

1 answer:

Rina8888 [55]3 years ago

6 0

Domain is the x values and Range is the y values

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pls help!!! this is due in 5 minutes. (pls don’t provide a link, i’ll give brainiest if u don’t just pls help me!!!)

LenaWriter [7]

Answer:

Step-by-step explanation:

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7 0

2 years ago

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Among 320 randomly selected airline travelers, the mean number of hours spent travelling per year is 24 hours and the standard d

Ostrovityanka [42]

The margin of error of the random selection is 0.29

The given parameters are:

$n = 320$ --- the sample size

$\sigma = 2.9$ --- the standard deviation

$\bar x = 24$ --- the mean

$\alpha = 90\%$ --- the confidence level.

The margin of error (E) is calculated as follows:

$E = z \times \sqrt{\frac{\sigma^2}{n}}$

So, we have:

$E = z \times \sqrt{\frac{3.2^2}{320}}$

$E = z \times \sqrt{\frac{10.24}{320}}$

The z-value for 90% confidence level is 1.645.

Substitute 1.645 for z

$E = 1.645 \times \sqrt{\frac{10.24}{320}}$

$E = 1.645 \times \sqrt{0.032}$

Take square roots

$E = 1.645 \times 0.1789$

Multiply

$E = 0.2943$

Approximate

$E = 0.29$

Hence, the margin of error is 0.29

Read more about margin of error at:

brainly.com/question/14396648

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2 years ago

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9>d, if d=3 <br> True or false

Strike441 [17]

Answer:

This is true. 9 is greater than 3.

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2 years ago

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Help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Alex17521 [72]

Answer: 9.7 seconds

Step-by-step explanation:

$16t^2=1503\\\\t^2 =\frac{1503}{16}\\\\t=\sqrt{1503/16} \text{ } (t > 0)\\\\t \approx 9.7$

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1 year ago

Which interval would not be used for the stems of a stem-and-leaf plot? 10 100 1 5

IrinaK [193]

100 because that just isn’t possible

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3 years ago