Ask question

Ask question

All categories

PSYCHO15rus [73]

2 years ago

13

Which of the following is a benefit to using a random sample for an observational study?

2 answers:

sashaice [31]2 years ago

8 0

Answer:

C. The results of the observational study can be generalized to the population.

Step-by-step explanation:

I chose E and it was wrong.

Pavel [41]2 years ago

6 0

Answer:

Step-by-step explanation:

Even though no answer choices are given, the main benefit of this is that by choosing a randomly from a population it allows every single individual to have the same chance of getting chosen and observed. This randomness allows for that sample group to much more accurately represent the entire population that is being observed without having to conduct additional research. Therefore, becoming extremely useful in such studies.

You might be interested in

Which expanded expressions represent the exponential expression (–4)3 · p4? Select all that apply. (–4) · (–4) · (–4) · (–4) · p

Alexxx [7]

Answer:

(-4)(-4)(-4)(p)(p)(p)(p)

Step-by-step explanation:

= $(-4)^3 * p^4$

The expanded form of it is:

= (-4)(-4)(-4)(p)(p)(p)(p)

4 0

2 years ago

Read 2 more answers

Find the midpoint of the segment between the points (3,17) and (−14,−8)

mixas84 [53]

Answer:

$\large\boxed{\left(-\dfrac{11}{2},\ \dfrac{9}{2}\right)}$

Step-by-step explanation:

The formula of a midpoint between two points A(x₁, y₁) and B(x₂, y₂):

$M_{AB}\left(\dfrac{x_1+x_2}{2},\ \dfrac{y_1+y_2}{2}\right)$

We have the points (3, 17) and (-14, -8).

Substitute:

$M(x,\ y)\\\\x=\dfrac{3+(-14)}{2}=\dfrac{-11}{2}\\\\y=\dfrac{17+(-8)}{2}=\dfrac{9}{2}$

5 0

2 years ago

Read 2 more answers

Prepare a prototype residual plot for each of the following cases: (1) error variance decreases with X; (2) true regression func

Nadya [2.5K]

Answer:

Please see attachment

Step-by-step explanation:

3 0

2 years ago

CAN SOMEONE PLEASE HELP ME RIGHT NOW.

exis [7]

Answer:

m∠SRV = 48°

Step-by-step explanation:

In the parallelogram attached,

m∠TUV = 78°

m∠TVU = 54°

By applying the property of the angles of a triangle in ΔTVU,

m∠TUV + m∠TVU + m∠UTV = 180°

78° + 54° + m∠UTV = 180°

m∠UTV = 180° - 132°

= 48°

Sides RS and TU are the parallel sides of the parallelogram and diagonal TR is a transverse.

Therefore, ∠UTV ≅ ∠SRV [Alternate interior angles]

m∠UTV = m∠SRV = 48°

6 0

2 years ago

In the diagram, WZ=StartRoot 26 EndRoot. On a coordinate plane, parallelogram W X Y Z is shown. Point W is at (negative 2, 4), p

geniusboy [140]

Answer: Last option.

Step-by-step explanation:

Observe the diagram.

The perimeter of the parallelogram will be the sum of the lenghts of its sides. Then:

$P=WX+XY+YZ+WZ$

You know the lenght of the side WZ. This is:

$WZ=\sqrt{26}\ units$

Notice that:

$XY=WZ=\sqrt{26}\ units$

Now, you must find the lenghts of the sides WX and YZ ( $WX=YZ$ )

Observe that WZ goes from 2 to -2, therefore its lenght is:

$WX=YZ=2-(-2)=4\ units$

Therefore, substituting values, you get that the perimeter of the paralellogram is:

$P=(4+ \sqrt{26}+4+\sqrt{26})\ units\\\\P=2\sqrt{26} +8\ units$

3 0

2 years ago

Read 2 more answers