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4 years ago

What does it mean for the finding of a statistical analysis of data to be statistically significant?

Mathematics

1 answer:

Phoenix [80]4 years ago

3 0

Answer:

C. The likelihood of getting these results by chance is very small.

Step-by-step explanation:

When the finding of a statistical analysis of data is said to be statistically significant, it simply means that the likelihood of getting these results by chance is very small.

This ultimately implies that, an experiment or research is statistically significant when its results or outcomes isn't likely to occur by chance or randomly rather it is associated with a specific cause.

Generally, when the p-value is very small (less than or equal to 0.05) then the result of a research or experiment is considered to be statistically significant and reliable.

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50 points !! please help hurry

SCORPION-xisa [38]

Since two of the sides are perpendicular that means they both have a right angle so the correct answer is C.

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3 years ago

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Which of the following statements is true? A. A tangent is never a secant. B. A secant is always a chord. C. A chord is always a

kvasek [131]

The answer to this is B.

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4 years ago

HELP WITH THIS MATH PROBLEM 93. Points

nadya68 [22]

Answers:

4; 20; 3x² - 4x + 3; 52; 17

Step-by-step explanation:

f(-1): replace x in f(x) = x² + 3 with -1: f(-1) = (-1)² + 3 = 4

f(-4) + g(-1) = (-4)² + 3 + 2(-1) + 3 = 16 + 3 - 2 + 3 = 20 (since g(x) = 2X + 3)

3f(x) - 2g(x) = 3[x² +3] - 2[2x + 3} = 3x² + 9 - 4x - 6 = 3x² - 4x + 3

f(g(2)): First, evaluate g(2). It is g(2) = 2(2) + 3 = 7. Next, use this output, 7, as the input to f(x): f(g(x)) = (7)² + 3 = 49 + 3 = 52

g(f(2)): First, evaluate f(x) at x = 2: f(2) = (2)² + 3 = 7. Next, use this 7 as the input to g(x): g(f(2)) = g(7) = 2(7) + 3 = 17

8 0

4 years ago

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write the slope intercept equation. the graph of f passes through (-6,4) and is perpendicular to the line that has an x-intercep

Nimfa-mama [501]

Answer:

y = $-\frac{1}{3} x$ + 2

Step-by-step explanation:

The slope of the line that has an x intercept of (2,0) and y-intercept of (0,-6) is:

Slope(s) = Change in y ÷ change in x

s = $\frac{0 - -6}{2 - 0}$ = 3

The slope of the perpendicular line to this line with slope of 3 has to have a slope of -1 ÷ 3 = $-\frac{1}{3}$

Reason: The product of slopes of lines perpendicular to each other have to be -1

So the slope of the perpendicular line that passes through (-6,4) is $-\frac{1}{3}$

As mentioned earlier, we derive a slope of a line by dividing the change in y by the change in x

Taking another point (x,y) on the line,

$-\frac{1}{3}$ = $\frac{y - 4}{x - -6}$

$-\frac{1}{3}$ = $\frac{y - 4}{x + 6}$

y - 4 = $-\frac{1}{3}$ x - 2

y = $-\frac{1}{3}$ x + 2

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3 years ago

Remove the brackets and simplify

Komok [63]

Answer:

$5x - 7 {x}^{2} - {(2x)}^{2} \\ = ( {2}^{2} {x}^{2} ) - 7 {x}^{2} + 5x \\ = 4 {x}^{2} - 7 {x}^{2} + 5x \\ = x(4x - 7x + 5) \\ = x( 5 - 3x) \\ = { \underline{ \underline{ \: \: 5x - 3 {x}^{2} \: \: }}}$

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3 years ago

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