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zysi [14]
3 years ago
10

Determine whether the sample is biased or unbiased. Explain.

Mathematics
1 answer:
notka56 [123]3 years ago
8 0

Answer:

the sample is biased

Step-by-step explanation:

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Which value of x solves the equation below?
Temka [501]

Answer:

x = 4

Step-by-step explanation:

10(x - 1) = 8x - 2

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3 0
2 years ago
Which of the following functions illustrates a change in amplitude?
OLEGan [10]

Answer:

Correct option is A.          

Step-by-step explanation:

Given the following functions we have to choose the option which illustrates a change in amplitude.

Multiplying a sine or cosine function by a constant changes the graph of the parent function i.e results in change in the amplitude of function. Amplitude is the measure of distance from the sinusoidal axis to the maximum or the minimum.

Option A:  y = 3cos4x

The parent function is f(x) = cos x.

The amplitude of function changes from 1 to 3.

Option B:  y = 1+sinx

The parent function is f(x) = sin x

The amplitude remains same i.e 1

Option C: y = -2-cos(x - pi)

Here also remains same.

Option D: y = tan 2x

The tangent function does not have an amplitude because it has no maximum or minimum value.

Hence, correct option is A.

7 0
4 years ago
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The mean is a better descriptor for skewed distribution. <br> a. true <br> b. false
vitfil [10]
Most likely true. It depends. When the distribution is skewed with an extreme tilting it to one side, median would be a better measure of central tendency. If the extremities are almost balanced on both sides then mean would be a better measure of central tendency.
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Find the difference -5 -(-27)
Mrac [35]
The answer to the question is 22 .
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Answer:it turned out I was not gay after all

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