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mylen [45]
3 years ago
11

Which of the following sample sizes for a large number of samples taken from a population will result in the sample means most c

losely approximating the population mean?
A.89
B.9
C.1
D.19
Mathematics
2 answers:
Phoenix [80]3 years ago
8 0

It means it is asking for a large number so it can represent more of the population because the larger the number the more percent of population so the answer would be A

mart [117]3 years ago
4 0

Answer:

Option A)89

Step-by-step explanation:

The central limit theorem says that the mean of the samples taken would be the variable which has normal distribution in spite of the original distribution which it belonged to.

In other words, if X is a random variable, and various samples of x are taken and their means are arrived.  These means would be normal provided sample sizes are large and sample are drawn unbiased.

The larger the sample size the more closer the sample mean would be to the normal mean.

Out of the 4 options, 1,9 and 19 are too small to consider to be normal also since for normal distribution minimum sample size is 30.

Hence the only correct answer is Option A) 89

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Juan is drawing the two-dimensional net of a rectangular solid, but he made a mistake. What error did Juan make, and how can he
dsp73

Answer:

D.The prism is missing a sixth face, which should be colored white.

Step-by-step explanation:

The shape does not have 2 bases in the picture showed. Therefore, it needs another white square.

Hope it helps! have a good day! :)))))

7 0
3 years ago
Read 2 more answers
Each of the walls in Harvey’s shed are square and have an area of 84 square feet. What is the approximate height, to the nearest
Snowcat [4.5K]

Answer:

9 ft

Step-by-step explanation:

Here, we have a square wall with a value of 84 square feet for the area and we are told to find the approximate height of the walls

Mathematically, the area of a square is L^2

The height of the walls is just as one of its side

Thus;

L^2 = 84

L = √(84)

L = 9.165

which to the nearest foot is 9 ft

6 0
3 years ago
Find the value of the constant m √150 - √12m + √54 = 0​
Tomtit [17]

Answer:

<u>m</u><u> </u><u>is</u><u> </u><u>√</u><u>2</u>

Step-by-step explanation:

{ \tt{ \sqrt{150}  -  \sqrt{12}m +  \sqrt{54}  = 0 }} \\ { \tt{ \sqrt{12}m } =  \sqrt{150}  -  \sqrt{54} } \\ { \tt{ (\sqrt{4 \times 3}) m = ( \sqrt{25 \times 6} ) - ( \sqrt{9 \times 6}) }} \\ { \tt{( \sqrt{4 \times 3} )m = 5 \sqrt{6}  - 3 \sqrt{6} }} \\ { \tt{2 \sqrt{3}m = 5 \sqrt{6}   - 3 \sqrt{6} }} \\ { \tt{2 \sqrt{3} m = 2 \sqrt{6} }} \\ { \tt{ \sqrt{3}  m =  \sqrt{6} }} \\ { \tt{ \sqrt{3} m = ( \sqrt{3} \times  \sqrt{2} ) }} \\ { \tt{m =  \sqrt{2} }}

7 0
3 years ago
Anyone i need help with this
DIA [1.3K]

Answer:

Step-by-step explanation:

a1=90-a2

a1=90-30=60

a2 is opposite 30 and opposite angles are equal so

a2=30

The sum of the angles of a triangle are equal to 180 degrees.

a2+a3+70=180

a3+30+70=180

a3=100=180

a3=80

4 0
3 years ago
F(x+1)+f(x+2)=2x+3; f(x)=?
Rama09 [41]

Answer:

F=\frac{-xf+f+2x}{x+1};\quad \:x\ne \:-1

Step-by-step explanation:

1. \mathrm{Subtract\:}f\left(x+2\right)\mathrm{\:from\:both\:sides}\\&#10;F\left(x+1\right)+f\left(x+2\right)-f\left(x+2\right)=2x+3f-f\left(x+2\right)&#10;&#10;

2. \mathrm{Simplify}\\&#10;F\left(x+1\right)=-xf+f+2x\\&#10;

3. \mathrm{Divide\:both\:sides\:by\:}x+1;\quad \:x\ne \:-1\\&#10;\frac{F\left(x+1\right)}{x+1}=-\frac{xf}{x+1}+\frac{f}{x+1}+\frac{2x}{x+1};\quad \:x\ne \:-1

4. \mathrm{Simplify}\\&#10;F=\frac{-xf+f+2x}{x+1};\quad \:x\ne \:-1

Final Answer: F=\frac{-xf+f+2x}{x+1};\quad \:x\ne \:-1

4 0
3 years ago
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