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patriot [66]
3 years ago
11

Body frame size is determined by a person's wrist circumference in relation to height. A researcher measures the wrist circumfer

ence and height of a random sample of individuals.What is the value of the test statistic to see if the correlation is statistically significant
Mathematics
1 answer:
matrenka [14]3 years ago
3 0

Answer:

The answer is "6.212".

Step-by-step explanation:

A few of the information is missing throughout this question, therefore the solution could be defined as follows:

In this question, the value of its testing dataset to determine unless the connection is clinically meaningful from both the Means and standard deviations is 6.212 from its test statistics.

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What is the measure of angle x?
Kitty [74]

The two horizontal lines are parallel.

This makes the 80 degree angle and the angle ox x and 20 degrees are alternate interior angles and are the same.

This means x + 20 needs to equal 80.

X = 80-20 = 60 degrees.

8 0
4 years ago
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Explain the steps needed to determine the value of the expression shown below be sure to provide the correct value of the expres
inn [45]

Answer:

-3/2

Step-by-step explanation:

In the picture attached, the complete question is shown.

The expression is:

\frac{ \frac{1}{2} }{ \frac{-2}{5}} + \frac{-1}{4}

You can rewrite the first term, expressing the division as a multiplication, that is, inverting the fraction in the denominator, as follows:

\frac{1}{2} \times \frac{-5}{2}+ \frac{-1}{4}

\frac{-5}{4} + \frac{-1}{4}

The addition of a negative fraction is simply the subtraction by that fraction:

\frac{-5}{4} - \frac{1}{4}

\frac{-5 - 1}{4}

\frac{-6}{4}

Which can be simplified dividing by two both numerator and denominator:

\frac{-3}{2}

8 0
3 years ago
What are the areas of each shape
Snezhnost [94]

Answer:

Hi since area is measured in square units, all you have to do here is count the squares within those shapes.  

Step-by-step explanation:

3 0
4 years ago
<img src="https://tex.z-dn.net/?f=%20express%20%5C%3A%20%20%5C%3A%20%5Csin%282x%29%20%20-%20%20%5Csqrt%7B3%7D%20%20%5Ccos%282x%2
gizmo_the_mogwai [7]

Answer:

α = π/3

γ = 2

x = -3π/4, -5π/12, π/4, 7π/12

Step-by-step explanation:

Easiest way to do this is in reverse.

γ sin(2x − α)

Angle sum/difference formula:

γ (cos α sin(2x) − sin α cos(2x))

Distribute:

γ cos α sin(2x) − γ sin α cos(2x)

Matching the coefficients:

γ cos α = 1

γ sin α = √3

Solve the system of equations.  Divide to eliminate γ:

tan α = √3

α is between 0 and π/2, so:

α = π/3

γ = 2

sin(2x) − √3 cos(2x) = 1

Using the identity from before:

2 sin(2x − π/3) = 1

Solving:

sin(2x − π/3) = 1/2

2x − π/3 = π/6 + 2kπ or 5π/6 + 2kπ

2x = π/2 + 2kπ or 7π/6 + 2kπ

x = π/4 + kπ or 7π/12 + kπ

x is between -π and π, so:

x = -3π/4, -5π/12, π/4, 7π/12

7 0
4 years ago
Four points are labeled on the number line.Which point represents the value |-1 1/2|?
alukav5142 [94]

Answer: -1

Step-by-step explanation:

i really don't know but i was taking a test and i guessed it and it was right

4 0
3 years ago
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