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soldier1979 [14.2K]
3 years ago
5

What is margin of error??

Mathematics
1 answer:
Tems11 [23]3 years ago
8 0

Answer:

The margin of error for a sample size of 250 is 6

Step-by-step explanation:

The margin of error is given as

1/square root of the sample size

Thus, margin of error for a sapless size of 250 is

1/√250

= 1/15. 811

= 6

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Can someone show me step by step?
OLEGan [10]

Answer:

AB = JK = 49

Step-by-step explanation:

Since ABC = JKL

We know the length of AB has to equal the length of JK.

AB = JK

14x+7 = 5x+34

Subtract 5x from each side.

14x-5x +7 = 5x-5x+34

9x+7 = 34

Subtract 7 from each side

9x+7-7 = 34 -7

9x = 27

Divide each side by 9.

9x/9 = 27/9

x =3


AB = 14x+7

Substitute x=3

      14(3) +7

      42+7

AB =    49

5 0
3 years ago
How do I solve 13.65=h+4.88 it’s stupid I know but I need help!!
murzikaleks [220]

Answer:

8.77

Step-by-step explanation:

13.65 - 4.88 = 8.77

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4 0
3 years ago
How is shading a grid to show 1 tenth different from shading a grid to show 1 hundredth?
soldier1979 [14.2K]
If you have a grid with a hundred units and you need to show 1 hundredth (or 1%) you shade in 1 unit. If you need to show a tenth (or 10%) you shade 10 Units. I would need a picture of the grid to help any further.
6 0
3 years ago
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Help! This is due today and I'm stuck on this problem.
Varvara68 [4.7K]

Answer:

280.6 m^2

Step-by-step explanation:

<u>find the length of each side:</u>

you're only given h = 9 m

the formula for h is  h=\frac{\sqrt{3} }{2} *a, where a is a side length of the hexagon

plug h in:

9=\frac{\sqrt{3}}{2}*a\\\\a=9*\frac{2}{\sqrt{3}}\\\\

a ≈ 10.392 m

<u>now find the area of a triangle:</u>

1/2 (10.392)(9) = 46.764 m^2

multiply that by 6 and you get 280.584 ≈ 280.6 m^2

you can also use the regular hexagon area formula instead of finding the individual area and multiplying by 6: \frac{3\sqrt{3} }{2} *a^2

7 0
3 years ago
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Outline the characteristics of a model which predicts its capital adequacy over a decade into the future of long term insurance?
Aleks [24]

Answer:

c

Step-by-step explanation:

answer is c on edg

6 0
3 years ago
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