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Neko [114]
2 years ago
15

The participants in a research study self-report their sleep quality levels by choosing the response option that best characteri

zes their average sleep quality per night from the following response options: 1 = extremely low sleep quality, 2 - very low sleep quality, 3 - low sleep quality, 4 = extremely high sleep quality. Which measurement scale is being used to classify sleep quality?
Mathematics
1 answer:
Bad White [126]2 years ago
6 0

Answer:

This is a Categorical variable and the measurement scale is ordinal scale.

Step-by-step explanation:

The measurement scale that is being used to classify sleep is the ordinal measurement. In this question, the variable that is called sleep quality is a categorical variable. categorical variables are variables that have the data representing groups. sleep quality has been given this categorical order extremely low very low low and extreme high.

The ordinal scale is a scale that denotes order it has all variables in a specific order.

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My chemistry book is 8 years older than my Algebra book. In 6 years the chemistry book will be twice as old as the Algebra book.
4vir4ik [10]

Answer:

x + 14 = 2(x + 6)

x = 2

Step-by-step explanation:

Let

Algebra book age = x

Chemistry book age = x + 8

In 6 years time

Chemistry book age = x + 8 + 6

= x + 14

Algebra book age = x + 6

the chemistry book will be twice as old as the Algebra book.

x + 14 = 2(x+6)

x + 14 = 2x + 12

x - 2x = 12 - 14

- x = - 2

Divide both sides by -1

x = 2

Check:

Chemistry book age = x + 14

= 2 + 14

= 16

Algebra book age = x + 6

= 2 + 6

= 8

6 0
3 years ago
Which pairs of rectangles are similar polygons?<br> Select each correct answer.
iragen [17]

Answer:

The bottom two

Step-by-step explanation:

[] Similar beings their sides have equivalent ratios to each other

[] See attached

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

8 0
2 years ago
Mikey had 104 nickels and 88 dimes she wants to divide the coins into group of each group will have the same number of nickels i
coldgirl [10]

Answer:

8

Step-by-step explanation:

8 can go into 88 and it can also go into 104 too and 8 is the largest number so the answer is 8

3 0
2 years ago
What is the scale factor from Figure A to Figure B?
ASHA 777 [7]

Answer:

3

Step-by-step explanation:

Because you can see there was one cube length in figure A and there was 3 cubes length in figure B.

3 0
3 years ago
Read 2 more answers
The volume of a rectangular prism is given by the product of its length, and height. Samantha has a rectangular prism that has a
Juli2301 [7.4K]

Answer:

V = a²b³ + acb² units³

Step-by-step explanation:

The volume of a rectangular prism is given by :

V = l×b×h

Here, l = b² units

b = aunits

h = ab+c units

So, the volume of the prism is given by :

V = b² × a × (ab+c)

= ab²(ab+c)

= a²b³ + acb²

Hence, the required volume is a²b³ + acb² units³.

3 0
2 years ago
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