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3 years ago

A convenience sample differs from a voluntary sample in that

2 answers:

5 0

Answer: A convenience sample is structured based on accessibility to the researcher, and a voluntary sample is based on participant interest.

Step-by-step explanation:

For the conventional sample the researcher chooses a sample that is readily available in some non-random way. Thus, it is structured based on accessibility to the researcher.

But for the voluntary sample the researcher puts out a request for participants of a population to join the sample, and participants decide whether or not to be in the sample. Thus, it is based on participant interest.

bija089 [108]3 years ago

5 0

The best answer to the incomplete statement above would be the first choice. A convenience sample differs from a voluntary sample because a convenience sample is based on how accessible or easily obtained participants are to the researcher, while a voluntary sample is based on the participants' interest of participating.

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3 years ago

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3 years ago

The equation of a parabola is y=1/8x2−4x+41 .

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Jack bought 50 lbs of clay for his art projects. He used 13.2 lbs to make a sculpture, and 0.72 lbs for each mug. How many mugs

KIM [24]

Given :

Jack bought 50 lbs of clay for his art projects. He used 13.2 lbs to make a sculpture, and 0.72 lbs for each mug.

To Find :

How many mugs did Jack make if he had 28.88 lbs of clay left over.

Solution :

Clay required to make 1 mug, r = 0.72 lbs.

Amount of clay left after making sculpture is, T = 28.88 lbs.

Now, number of clay mug Jack can make is :

$n = \dfrac{28.88}{0.72}\\\\n= 40.11$

Since, number of mug cannot be in decimal, so we take the floor value.

Therefore, number of mug that can be prepared is 40 .

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3 years ago

Let AB // ED , AB = 10 units, AC = 12 units, and DE = 5 units. What is the length of AD?

zheka24 [161]

Answer:

length of CD = 18 units.

Step-by-step explanation:

In ΔABC and ΔCED,

AB║DE and AD is a transversal line,

m∠ABC = m∠CED [Alternate interior angles]

m∠ACB = m∠DCE [Vertically opposite angles]

ΔABC ~ ΔCED [By AA property of similarity]

Therefore, by the property of similar triangles, corresponding sides will be proportional.

$\frac{AB}{DE}= \frac{AC}{DC}$

$\frac{10}{5}=\frac{12}{CD}$

CD = 6

Since, AD = AC + CD

AD = 12 + 6

= 18 units

Therefore, length of CD = 18 units.

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3 years ago