Which of the following is not a factor involved in the process of evaluating an observational study?Introduction
Results
Discussion
Bias

Answers

Answer 1

Answer:

Answer:

The answer is D, bias. If bias were a factor in an observational study(which it is not), then the study would be inaccurate due to someone's personal views affecting the results. Therefore bias is not a factor in the process of evaluating an observational study.

I don't know who verified the answer of the person why thought the answer was A, but they were incorrect.

Answer 2

Answer: Results and Discussion are definitely very relevant for examining an observational study - they contain the core of the study, so they will definitely be considered when evaluated.
So we choose between "Bias" and "Introduction".

I think that the correct answer is "Introduction" -as it doesn't include any new information about the study, and only summarizes previous work.

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Graph the line bu locating any two ordered pairs that satisfy the equation

Y=-3x

Answers

I did it in my calculator and I found it online.

Write the equation of the line containing the point (3, –2) and having a slope of 2 in slope-intercept form.

Answers

Calculation of b:
y = mx + b
-2 = 2(3) + b
b = -2 - 6
b = -8

So, Equation would be: y = 2x - 8

Hope this helps!

25 POINTS AND BRAINLIESTSUPER EASY!

Which is the best scale to use when making a line graph for the data below?
Week

1

2

3

4

Profits (in dollars)

228

367

385

280

A) from 0 to 1000

B) from 200 to 1000

C) from 0 to 400

D) from 200 to 400

Answers

it's D from 200 to 400

The answer would be C because it is the most effective interval set.

Using completing the square to solve for x in the equation (x-12)(x+4)=9

Answers

Answer:

x = 4 + √73

Step-by-step explanation:

The given equation is ( x-12 ) ( x + 4 ) = 9

We will solve the equation first.

( x - 12 ) ( x + 4 ) = 9

x( x+4 ) - 12 ( x + 4 ) = 9 [ Distributive property ]

x² + 4x - 12x - 48 = 9

x² - 8x - 48 = 9

x² - 8x - 48 - 9 = 0

x² - 8x - 57 = 0

[ x² - 2 (4x) + 16 ] - 57 - 16 = 0

(x - 4)² - 73 = 0

(x - 4)² = 73

( x-4 )² = √73

x = 4 + √73

x = 4 + √73 is the answer.

Hello!

You can multiply (x-12) and (x+4)

x * x = x^2
x * 4 = 4x
-12 * x = -12x
-12 * 4 = -48

Now we have

x^2 - 8x - 48 = 9

Subtract 9 from both sides

x^2 - 8x -57 = 0

Use the quadratic formula

This give use the answer of

x = 4 + $√(72)$

Hope this helps!

the relative frequency of a blue on a spinner is 3/5.how many times would you expect a blue in 250 spins

Answers

$250\cdot\frac{3}5=\boxed{150\text{ times}}$

Mauritius island is 2 km due south of its closest point along a straight coastline. Gibril is staying at a private room on the shore that is 6 km east of that point. Gibril is planning to go from the room to the island. Suppose Gibril runs at a rate of 8 kmph and swims at a rate of 3 kmph. How far should Gibril run before swimming to minimize the time it takes to reach the island?