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luda_lava [24]
2 years ago
13

A history instructor has given the same pretest and the same final examination each semester. He is interested in determining if

there is a relationship between the scores of the two tests. He computes the linear correlation coefficient and notes that it is 1.15. What does this correlation coefficient value tell the instructor?
A) The correlation is something other than linear.

B) There is a strong negative correlation between the tests.

C) The history instructor has made a computational error.

D) There is a strong positive correlation between the tests.

E) none of these
Mathematics
1 answer:
serg [7]2 years ago
6 0

Answer:

5

skskjdkfhskhkshgjkdhh

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Would $105.00 be correct? With the equation of Y=x(15)?
Vilka [71]

Answer:

$15.00h=N

$15.00(7)=N

$105.00=N

N=$105.00

So yes you are correct

Hope that helped

4 0
3 years ago
Subtract (-2x² +3x-5) from( 6x2 -4x+2)
Andreyy89

Answer:

8x² - 7x + 7

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Distributive Property

<u>Algebra I</u>

  • Combining Like Terms

Step-by-step explanation:

<u>Step 1: Define</u>

(6x² - 4x + 2) - (-2x² + 3x - 5)

<u>Step 2: Simplify</u>

  1. Distribute negative:                    6x² - 4x + 2 + 2x² - 3x + 5
  2. Combine like terms (x²):             8x² - 4x + 2 - 3x + 5
  3. Combine like terms (x):               8x² - 7x + 2 + 5
  4. Combine like terms (Z):              8x² - 7x + 7
8 0
3 years ago
please please please help me please help me please help me please help me please help me please help ​
steposvetlana [31]

Answer:

1/4 of the answer

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
FAST PLEASE VERY INPORTANT
Wittaler [7]

-24°F

Step-by-step explanation:

-18°F + 13°F - 19°F

= -5°F - 19°F

= -24°F

5 0
2 years ago
Read 2 more answers
What is the volume of a right circular cone if the circumference of the base is 125.6 ft and the height is 75 ft.?
Eddi Din [679]

Answer:

Hence the volume of the cone is 31384.52 cubic feet

Step-by-step explanation:

We must first need to understand how the volume of a cone is calculated.

It is simply calculated by multiplying the base area of the cone by the height, and dividing the result by 3.

This is :

Volume of cone = \frac{\pi r^2 h}{3}

we are not given the base area of the cone. However, we are given the circumference from which we can get the radius of the base.

Circumference =

2 \pi r=125.6ft\\r =125.6/2 \pi=19.99ft

hence the volume of the cone is

\frac{\pi (19.99)^2 75}{3}=31384.52ft^{3}

Hence the volume of the cone is 31384.52 cubic feet

3 0
3 years ago
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