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Musya8 [376]
3 years ago
14

If the population standard deviation is o=10, how large a sample is necessary to have a standard error that is less than 5 point

s?
Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
7 0
Use the following questions & solve for n to find the sample size: sample error = o / sqrt(n). Next you would arrange equation to solve for sample size: sqrt(n) = o / sample error. Then square both sides to get: n = (o / sample error)^2.
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11. Charles's Law states that at constant pressure, the volume of a fixed amount of gas varies
Zanzabum

Answer:

a.V=5/6T

b. 350 ml

Step-by-step explanation:

a.

V∝T

or V=kT

where k is a constant.

V=250 ml

T=300° K

250=300 k

k=250/300=5/6

so V=5/6 T

b.

V=5/6 T

=5/6×420

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6 0
2 years ago
6.) What is the similarity ratio?<br> A. 10:20<br> B. 10:28<br> (C.)5:14<br> D. 1:2
lesya692 [45]

Answer:

A AND D

B AND C

Step-by-step explanation:

If you change A into lowest terms it equals D

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5 0
3 years ago
9 – 2k = 25 what is k
worty [1.4K]

Answer:

k = - 8

Step-by-step explanation:

Subtract 9 from both sides to get the constants on one side and the variables on the other

9 - 2k = 25

- 2k = 25 - 9

Simplify

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Divide by -2 on both sides to isolate the variable, then simplify once more.

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k = 16/ -2

k = -8

8 0
3 years ago
Read 2 more answers
Need help with my math simplify
nlexa [21]

2+42/-2-5(-3)  Multiply -5 and -3.

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17-21. And from here, its easy. Just a simple subtraction problem.

-4 should be the correct answer.

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3 years ago
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earnstyle [38]

Answer:

A translation by 1 units to the right and 3 units down.

Step-by-step explanation:

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3 years ago
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