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DIA [1.3K]
3 years ago
10

It is clear that a large survey is an appropriate method for a study of marriage patterns among college students. What will the

researcher need to do to insure that the research sample is random?
Mathematics
1 answer:
Ulleksa [173]3 years ago
7 0

Answer:

Here the sample is the college students, and the researcher want's to do a survey to obtain information about marriage patterns.

Then, the ideal sample will be constituted of students of both genders, of different ideologies, of different social classes, of different religions, etc.

Then the thing that the researcher needs to do is:  

Define the size of the sample

Assign to each student a unique number.

using a random number generator,  generate enough different numbers to fill the sample.

Each of these numbers corresponds to a unique student, so now you have a complete sample of random selected students.

This sample can not be biased in any way.

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Which expressions are equivalent to the equation
Ivahew [28]

Answer:

The correct answer is option 3

2⁻¹⁰ and 1/1024

Step-by-step explanation:

Points to remember

1). ( xᵃ)ᵇ = xᵇ

2).  x⁻ᵃ = 1/xᵃ

It is given that, (2⁵)⁻²

<u>To find the equivalent of (2⁵)⁻²</u>

(2⁵)⁻² =  2⁻¹⁰

<u>To find the value of 2⁻¹⁰</u>

2⁻¹⁰ = 1/2¹⁰

2¹⁰ = 1024

1/2¹⁰ = 1/1024

Therefore the correct answer is 3rd option

2⁻¹⁰ and 1/1024

5 0
2 years ago
Read 2 more answers
Natalie is making doll customers. Each costume has 4 buttons that coast 3 € each and a zipper that costs 7€. How much does she s
otez555 [7]
24euro on zipper
and 24euro on button
7 0
2 years ago
Part I: Marco rented a small moving van. The moving company charges $40 a day for up to 5 days. The input is the time, in days,
Snezhnost [94]

Given mapping is a function.

Domain: \{1,2,3,4,5\}

Range: \{40,80,120,160,200\}

Step-by-step explanation:

By observing Marco's mapping diagram we can see that every value in time is mapped to only one value in the cost. This means that there will be no repetition or same output to two different outputs so given mapping is a function.

<u>Domain:</u>

Domain is the set of all inputs of a function. Here time is input so domain of function is:

\{1,2,3,4,5\}

<u>Range:</u>

Range is the set of all outputs of the function on domain so the range of the given function is:

\{40,80,120,160,200\}

Hence,

Given mapping is a function.

Domain: \{1,2,3,4,5\}

Range: \{40,80,120,160,200\}

Keywords: Domain, range, function

Learn more about function at:

  • brainly.com/question/774670
  • brainly.com/question/763150

#LearnwithBrainly

7 0
2 years ago
-6 - 3(2x + 4) = 18what’s the answer
Brrunno [24]

Answer:

x=-6

Step-by-step explanation:

-6-3\left(2x+4\right)=18

Add 6 to both sides:

-6-3\left(2x+4\right)+6=18+6

-3\left(2x+4\right)=24

Divide both sides by -3:

\frac{-3\left(2x+4\right)}{-3}=\frac{24}{-3}

2x+4=-8

Subtract 4 from both sides:

2x+4-4=-8-4

2x=-12

Divide both sides by 2:

\frac{2x}{2}=\frac{-12}{2}

x=-6

7 0
3 years ago
Using the figure below, write the ratio for tan (C).<br> А<br> 25<br> C<br> 7<br> 24<br> B
miv72 [106K]

Answer:

come have it with me

Step-by-step explanation:

4 0
3 years ago
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