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natita [175]
3 years ago
7

In a study conducted at a large long-term care facility, two data collectors examined 56 pressure ulcers on 40 different subject

s. The examinations were independently performed on the same day. A comparison of the results indicated that the data collectors scored 54 of the 56 (correlation coefficient 0.96) pressure ulcers identically using the Braden Scale for pressure ulcer assessment. What can be determined from this finding?
Mathematics
1 answer:
lara31 [8.8K]3 years ago
5 0

Answer:

Interrater reliability between the two data collectors was high

Step-by-step explanation:

Explanation-

  • Interrater reliability is the consistency of observations between two or more observers.
  • An Agreement of 54 out of 56 scores would indicate a high level of interrater reliability.
  • The data collection method was appropriate for pressure ulcer risk assessment.
  • The risk assessments did not have to be done by both evaluators at the same time.
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Ganezh [65]

Answer:

The values of a and b are 33 and \frac{20\sqrt{3}}{3}, respectively.

Step-by-step explanation:

The statement is equivalent to the following mathematic expression:

\left(5 + 2\sqrt{2})^{2} = a + b\cdot \sqrt{6} (1)

By definition of the perfect square trinomial:

25 + 20\cdot \sqrt{2} + 8 = a + b\cdot \sqrt{6}

33 + 20\sqrt{2} = a + b\cdot \sqrt{6}

And by direct comparison we have the following system:

a = 33 (2)

b\cdot \sqrt{6} = 20\sqrt{2} (3)

By (3), we solve for b:

b = \frac{20}{\sqrt{3}}

b = \frac{20\sqrt{3}}{3}

The values of a and b are 33 and \frac{20\sqrt{3}}{3}, respectively.

6 0
3 years ago
How is 2.5/3=75% equivalent
horsena [70]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Solve by any method (graphing, substitution or linear combination)
Lostsunrise [7]

Answer:

b) (5, -3)

Step-by-step explanation:

The given equations are;

y=x-8...(1)

2x+3y=1...(2)

I prefer using substitution because of the first equation.

Put equation (1) into equation (2) to obtain;

2x+3(x-8)=1

We expand the parenthesis to obtain;

2x+3x-24=1

Group similar terms to get;

2x+3x=1+24

Simplify

5x=25

Divide through by 5;

x=\frac{25}{5}

\Rightarrow x=5

Put x=5 into equation (1) to get;

y=5-8

\Rightarrow y=-3

The solution is (5,-3).

The correct answer is B

8 0
3 years ago
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noname [10]

Answer:

n stands for the unknown number

Step-by-step explanation:

It's the only variable in the equations, so it is the only one that can stand for any unknown.

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Whats the answer to -4-x+5x-3
Leto [7]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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