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Zanzabum
4 years ago
15

QM Q9.) Write the standard form of the equation of the circle with the given center and radius.

Mathematics
1 answer:
strojnjashka [21]4 years ago
5 0
R = √5 ≈ 2.236 ≈ 2.24

2.24 x 2.24 x 3.14 = 15.755264 ≈ 15.8
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Debate the following statement: "Correlation means Causation." Determine whether this statement is true or false, and provide re
Pachacha [2.7K]

Answer:

Thats FALSE.

The concept CORRELATION not automatically means CAUSATION.

Step-by-step explanation:

Previous concepts

The correlation coefficient is a "statistical measure that calculates the strength of the relationship between the relative movements of two variables". It's denoted by r and its always between -1 and 1.

And in order to calculate the correlation coefficient we can use this formula:

r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}  

Solution to the problem

Some useful concepts are:

Correlation is a statistical measure described with a number that describes the size and direction of a relationship between two or more variables. The correlation between variables, NOT mean that the change in one variable is the cause of the change in the values of the other variable.

Causation is a term refered to one event as the result of the occurrence of the other event for example, there is a causal relationship between event A and B like a cause and effect. One important thing to mention here is that the causation is not an easy concept to measure.

"The difference between the two types of relationships are easy to identify since one can be measured with a numerical value and the other no (Here is one example: smoking causes an increase in the risk of developing lung cancer), or it can correlate with another ( smoking is correlated with alcoholism, but it does not cause alcoholism)".

So is clear that the concept CORRELATION not automatically means CAUSATION.

6 0
3 years ago
The students were asked how they get to school each day.
Mumz [18]
The answer is 5/13.

Walking(7) + Biking(3) = 10 students
10 students out of 26 total students = 10/26
Simplified is 5/13
6 0
3 years ago
Read 2 more answers
While digging, John found a large metal bar that weighed 50 ounces. John
Alex777 [14]
60%
If you take the 30% and divide from the 50% you get .6 multiply that by a 100 you get 60.

30/50=.60
.60x100=60
60%
7 0
3 years ago
Use the distributive property to write an equivalent expression. 6(x+y+z)
Lyrx [107]

Answer:  6 x + 6y + 6z

Step-by-step explanation:  Simply distribute the 6 by multiplying it by each variable in the parenthesis!

7 0
3 years ago
Read 2 more answers
Todd hired a handyman to replace some tiles in his bathroom. He paid him $24 per hour of work and $15 as a tip.
Citrus2011 [14]
He paid him : 24t + 15

for 3 hrs...
24(3) + 15 = 72 + 15 = $ 87
4 0
4 years ago
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