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AleksandrR [38]

2 years ago

10

David reads this advert on his country council website 70% of the area of woodland in the country is native woodland this means

there are 350km squared of native woodland in the country work out the area of woodland in the country that is not native woodland

1 answer:

gavmur [86]2 years ago

7 0

-349.3 i think u didnt show the answers we choose from /my answer probably wrong i was assuming.

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Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence i

Pavlova-9 [17]

Answer:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

Step-by-step explanation:

Assuming that the parameter of interest is the sample mean $\mu$ . And we can estimate this parameter with a confidence interval given by this formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

For this case the confidence interval is given by (1.9, 3.3)

Since the confidence interval is symmetrical we can estimate the sample mean with this formula:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

7 0

3 years ago

What is the value of 5 in 756?

Bad White [126]

Since it’s in the tenths place it’s 50

3 0

2 years ago

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The perimeter of a rectangular red sticker is 34 mm. it is 8 mm tall. how wide is it?

Orlov [11]

Answer:

9 mm wide

Step-by-step explanation:

Perimeter = length x 2 + width x 2

34 mm = 16 mm + ?

34mm = 16 mm + 18 mm

18/2 = 9

9 mm wide

8 0

2 years ago

Read 2 more answers

Steve drove for 8 1/2 hours at 72 miles per hour. How much distance did he travel?

Pie

Answer:

He traveled 612 miles in total.

Step-by-step explanation:

You simply multiply the mph he was going to how long he traveled for. This gives us 72x8.5 equaling 612.

7 0

2 years ago

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Can someone help me :(( thank you so so much if u do <33:)

Keith_Richards [23]

Answer:

13

Step-by-step explanation:

8-13=-5

4 0

2 years ago

Read 2 more answers