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never [62]
3 years ago
12

In a simple regression, the correlation coefficient r is the square root of r2.

Mathematics
1 answer:
marta [7]3 years ago
7 0
The answer your are looking for is true
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A student is chosen at random from a large statistics class and asked how much time (in whole hours) she spent studying during t
allochka39001 [22]

Answer:

24

Step-by-step explanation:

The sample space is the total possible values of an experiment or research. Since the total number of hours is 24, then the total possible number (or the limit she can use have) is 24. This she cannot exceed this 24 hour limit. Then we call this the total possible outcome and thus the sample space.

6 0
3 years ago
The force F of gravity on a rocket varies directly with its mass m and inversely with the square of its distance d from Earth. W
xz_007 [3.2K]

Model for the Combined variation  is  F = \frac{km}{d^{2} }

Equation to find the mass of the rocket in terms of F and d is :

m=\frac{F d^{2} }{k}

<h3>What is Force ?</h3>

A force is the quantity that change the motion of the object. Force is that influence which can cause any object having some mass, to change it's position or to accelerate from it's original position.

Force (F) and mass (m) of any object are  directly proportional to each other. More the mass of the object , more the force will require to accelerate it.

Mathematically, we can write the equation of force as :

F = m . a

where , m = mass of the object

             a = constant value

In the statement given,

As, force of gravity varies directly with its mass

Therefore, F= k m , where k is a constant

Also force is inversely varies with square of distance d

Thus, F = k / d²

Combining both equations :

F = \frac{km}{d^{2} }  

and the equation of mass in terms of F and d can be written as :

m=\frac{F d^{2} }{k}

To know more about Force and it's equation, visit :

brainly.com/question/14857727

#SPJ4

7 0
1 year ago
Plssssss helppppppppppp​
lubasha [3.4K]
I believe the answer is A
5 0
3 years ago
Read 2 more answers
a model car has a scale of 3 cm : 2 m. The length of the actual hood of the car is 1 m. What is the length of the model?
Feliz [49]
Set up a proportion:
3cm/2m = x/1m
Cross-multiply:
2x=3
Divide by 2:
x=1.5 cm
6 0
3 years ago
Find the area of the triangle.<br><br> The area of the triangle is <br> 4<br> square units.
lesya692 [45]

Answer:

the answer is in your question?

3 0
3 years ago
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