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andrew11 [14]
3 years ago
8

Which sample size of a population of 200 is most likely to give a reliable conclusion?

Mathematics
2 answers:
Lerok [7]3 years ago
7 0
A sample size of 80 will be most reliable, because there is a less likely chance for error.
Ivahew [28]3 years ago
7 0

Answer: 80

Step-by-step explanation:

The sample size is very important if we want to conduct a research of any interest. The larger the sample size it will make research results more accurate and reliable to the researcher.

Also to detect a statistical difference with a certain strategy require a larger sample size.

From the given options 80 is the maximum value , so it must be representing the largest sample size .

Therefore, the sample size of a population of 200 is most likely to give a reliable conclusion is 80.

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Which expression is equivalent to 1/4x+3-1/3x+(2)
Simora [160]

Answer:

5 - 1/12x.

Step-by-step explanation:

1/4x + 3 - 1/3x + (2)

= 1/4 x - 1/3 x + 3 + 2

=  3/12 x - 4/12 x + 5

= -1/12 x + 5.

4 0
3 years ago
A 60 by 80-foot rectangular walk in a park surrounds a flower bed. If the walk is of uniform width and its area is equal to the
alekssr [168]

Answer: 17.14 ft

<u>Step-by-step explanation:</u>

The area of the flower bed is 60 ft x 80 ft = 4800 ft²

The perimeter of the sidewalk that surrounds the flower bed is:

  •   2(60 ft) + 2(80 ft)
  • = 120 ft + 160 ft
  • = 280 ft

The area of the sidewalk is:

  • perimeter x width
  • = 280w

area of sidewalk = area of flower bed

280w = 4800

\text{w}=\dfrac{4800}{280}

  =\dfrac{120}{7}

  ≈ 17.14


8 0
3 years ago
HELP ASAP ILL GIVE YOU 13 points
lubasha [3.4K]

Answer:

the domain and range can be found by horizontal and vertical test

Step-by-step explanation:

6.B

7.D

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3 0
2 years ago
What’s the hypotenuse?
Karolina [17]

Answer:

c = 10 feet

Step-by-step explanation:

Use the Pythagorean theorem:  a^2 + b^2 = c^2

<u>Step 1:  Plug in the information</u>

(6)^2 + (8)^2 = c^2

36 + 64 = c^2

100 = c^2

sqrt(100) = sqrt(c^2)

<em>10 = c</em>

<em />

Answer: c = 10 feet

7 0
3 years ago
What is the constant of proportionality between y/x
Y_Kistochka [10]

Answer:

3.5

Step-by-step explanation:

To find the constant of proportionality between y/x you investigate the trend in values of x with corresponding values of y

For this case, when x =1, y=3.5

                       when x=2, y=7

                       

Taking in case 1, y/x = 3.5/1 = 3.5

In case 2, y/x= 7/2 = 3.5

But you know that the constant of proportionality k is given by;

y=kx------------------------making k subject of formula

y/x=k

Hence in this case, your constant of proportionality is 3.5

8 0
3 years ago
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