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

Mathematics

2 answers:

Alex_Xolod [135]3 years ago

8 0

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.

bija089 [108]3 years ago

6 0

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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Solve x≤0 and x≥−4 and write the solution in interval notation. If there is no solution, type ∅.

xxTIMURxx [149]

The answer is (-∞.∞).

Draw out a number line. Plot 0 and -4 on the number line.

Shade to the left of x = 0, and have a filled in circle at the endpoint. This is the graph of x≤0

Then graph x ≥−4 by plotting a filled in circle at -4, and shading to the right.

Note how the two graphs overlap to cover the entire real number line

So if we have x≤0 or x≥−4 then we're basically saying x is any real number. To write this in interval notation, we write (−∞,∞)

This is the interval from negative infinity to positive infinity (or just infinity). We exclude each endpoint because we can't actually reach infinity itself. Infinity is not a number. Infinity is a concept

Side note: if you change the "or" to "and", then the solution to x≤0 and x≥−4 would be [-4, 0][−4,0] to indicate the interval from x = -4 to x = 0, including both endpoints. This is the region where the two graphs overlap.

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SPJ9

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2 years ago

Somebody help plz!!!

amid [387]

Answer:

42°

Step-by-step explanation:

angle b is complementary to 48° so their sum is 90°.

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