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3 years ago

Identify the sampling designs that use voluntary response sampling. Check all that apply.

Mathematics

2 answers:

luda_lava [24]3 years ago

8 0

Answer:

The sampling designs that use voluntary response sampling are #1, #2, #4, and #6

Step-by-step explanation:

Participating in an online survey, online voting polls, and requesting for others to complete a survey are all sampling designs that use voluntary response samplings.

Marta_Voda [28]3 years ago

3 0

Step-by-step explanation:

A voluntary response sample is defined as a type of sample made up of self-chosen participants. These participants volunteer to take part in different research studies to share their opinions on topics that interest them. A voluntary response sample is made up of persons who volunteer to take research surveys.

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zalisa [80]

Answer:

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3 years ago

Are the fractions 3/9, 3/10, 3/11, and 3/12 in order from least to greatest

Cerrena [4.2K]

Answer:

The fractions $\frac{3}{9},\frac{3}{10},\frac{3}{11},\frac{3}{12}$ are not in order from least to greatest.

Step-by-step explanation:

Given order of fractions from least to greatest:

$\frac{3}{9},\frac{3}{10},\frac{3}{11},\frac{3}{12}$

To check if the fractions are in correct order.

Solution:

The fractions given have same numerators but different denominators.

For fractions the higher the denominator the lower is the value of that fraction.

Thus, in the given list the least value fraction will be the fraction with the greatest denominator which is $\frac{3}{12}$ and the greatest value fraction will be the fraction with the least denominator which is $\frac{3}{9}$

So, the order of the fractions from least to greatest is not correct. Instead the order is from greatest to least.

The correct order from least to greatest should be:

$\frac{3}{12},\frac{3}{11},\frac{3}{10},\frac{3}{9}$ .

4 0

4 years ago

[2.5x 8(20+5) how would I solve this?

Fiesta28 [93]

Solution:

Consider the following expression:

2.5 x 8(20+5)

Solving the expression inside the parentheses first, we obtain:

2.5 x 8(25)

this is equivalent to:

2.5 x 200

this is equivalent to:

500

so that, we can conclude that the correct answer is:

500

5 0

2 years ago

If B is between A and C, and AB = x and BC = 12, and AC = 25, then find the value of AB.<br> AB = ?

Lady bird [3.3K]

AB=12 because it is half of it

4 0

3 years ago

What is the equation of the quadratic graph with a focus of (2, 0) and a directrix of y = −12?

Alexxandr [17]

Distance from the point (x,y) to the focus = distance of (x,y) from the directrix
so we have

sqrt [(x - 2)^2 + y2] = 12 + y

squaring both sides
x^2 - 4x + 4 + y^2 = 144 + 24y + y^2

x^2 - 4x + 4 = 144 + 24y

24y = x^2 -4x - 140

y = x^2/24 - x/6 - 35/6 is the required equation

8 0

3 years ago