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Gwar [14]
3 years ago
7

The estimate obtained from a sample of which of the following sizes would most likely be closest to the actual parameter value o

f a population?
Mathematics
1 answer:
SOVA2 [1]3 years ago
6 0

To obtain an estimate of a parameter of a population, we use confidence intervals.

Confidence intervals:

The larger the sample size, the closest the parameter estimate is to the value of the population, as the margin of error of confidence intervals is inversely proportional to the sample size, that is, a greater sample leads to a smaller margin of error.

Thus, you should select the highest sample size in the options.

For more on confidence interval/margin of error, you can check brainly.com/question/22718960

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In ∆MNP, m∠N = 90º, NH – altitude, m∠P = 21º, PM = 4 cm. Find MH.
Sveta_85 [38]

Answer:

0.51 cm

Step-by-step explanation:

In right triangle MNP, MP = 4 cm, m∠N = 90°, m∠P = 21°

By the sine definition,

\sin \angle P=\dfrac{\text{Opposite leg}}{\text{Hypotenuse}}=\dfrac{MN}{MP}\\ \\MN=MP\sin \angle P\\ \\MN=4\sin 21^{\circ}\approx 1.43\ cm

Now, consider right triangle HMN (it is right because NH is an altitude). By the cosine definition,

\cos \angle M=\dfrac{\text{Adjacent leg}}{\text{Hypotenuse}}=\dfrac{MH}{MN}\\ \\MH=MN\cos \angle M

In the right triangle, two acute angles are always complementary, so

m\angle M=90^{\circ}-m\angle P=90^{\circ}-21^{\circ}=69^{\circ}

Thus,

MH=1.43\cos 69^{\circ}\approx 0.51\ cm

7 0
3 years ago
Rou<br>Round 66.681 to the nearest ten thousand.​
Pavel [41]

Answer:

this only goes to the thousanths.

Step-by-step explanation:

7 0
3 years ago
Help me on this question, I'll give brainlist for the correct answer.
german

Answer:

Step-by-step explanation:

The first expression has value 12

The second expression has value -6

The third expression has value

4

And finally the forth expression has value 1.14

((13 + 7) = 20

(12+4) = 16

16/ (20 - 16)= 16 / 4

16/4 = 4

8 0
3 years ago
Read 2 more answers
What kind of angle is this and how do you work it out?
Lostsunrise [7]
Well x is an obtuse angle

but the angle e,f,g is an acute angle
7 0
3 years ago
Read 2 more answers
What is the product written in scientific notation?
wel
Answer is C. Definitely not d right off the bat because both exponents are negative so cross that out. After that its just counting zeros.
5 0
3 years ago
Read 2 more answers
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