What is a correlation?

What is a correlation?
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Answer :

A correlation is a statistical relationship between two variables, indicating that changes in one variable are associated with changes in the other variable.
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Related questions

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Is there a correlation between a lack of wisdom and nightmares?

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Is there a correlation between how intelligent an animal is at birth vs how intelligent it will get?

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Is there a correlation between transsexualism and autism?

Description : Is there a correlation between transsexualism and autism?

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Is there any real correlation between IQ and ones intellectual abilities?

Description : Is there any real correlation between IQ and ones intellectual abilities?

Last Answer : answer:Intelligence tests are not really a good indicator of ones IQ. For starters they are culturally based. They also focus a lot of mathematical ability. There is different types of ... fall under that approach. The terms intellect and intellectual are also quite different in their meaning.

With Manic/Depressive is there a correlation between the two phases?

Description : With Manic/Depressive is there a correlation between the two phases?

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What is the correlation between anxiety and not exercising?

Description : What is the correlation between anxiety and not exercising?

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Is there any correlation between urinating and cigarettes?

Description : Is there any correlation between urinating and cigarettes?

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How can we teach students to discern the difference between causation and correlation?

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Last Answer : answer:Sorry, this isn’t answering the question, but I just had to say that last graph is the funniest. “Is this mountain range affecting the murder rate?” LOL

When was the rise and decline of the American automobile in correlation to the American economy?

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Is there a correlation between the color of a cherry and its tartness?

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Is there any correlation between carbohydrates and joint pain?

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Do you see a correlation between astrological signs and personality types?

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Studies proving duration threshold for correlation between tanning bed use and melanoma?

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Do you think there is a direct correlation between success in academics and the ability to articulate yourself?

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Last Answer : answer:The ability to learn and the ability to articulate are two different things. Obviously vocabulary helps a person articulate. If you don't know the best fit word for what you are trying to say, ... to speak a language and were trying to learn something, eventually you'd learn a language, too.

Is there a correlation between being sick and getting a head rush more easily?

Description : Is there a correlation between being sick and getting a head rush more easily?

Last Answer : answer:Swine flu strikes again. Just kidding but several people here with swine flu are complaining of head pain, piercing ear pains and similar.

Do you think there is a correlation between intelligence and consumerism/materialism?

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Last Answer : I think it’s more a self esteem issue personally and a lack of sense of self.

What type of correlation would you expect between the number of minutes a candle burns and the height of the candle?

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Last Answer : This seems like a rate question.

Is there any correlation between getting dry socket after dental surgery, and a woman's hormonal cycle?

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Last Answer : I called my Oral Surgeon and asked him and he said that he has never heard of that being a issue. I would consider him a very good doctor.

What is local correlation?

Description : What is local correlation?

Last Answer : answer:I found a definition here; http://www.cs.cmu.edu/~spapadim/pdf/loco_icdm06.pdf The mathematical expatiation is here; http://www.ahay.org/RSF/book/jsg/attr/paper_html/node7.html I hope that helps!

Do you think there is a correlation between the repeal of the National Maximum Speed Law and our current petroleum-related woes?

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Is there any real correlation between handedness and average life span?

Description : Is there any real correlation between handedness and average life span?

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What do you see as the correlation between skincare and wellness? What is your current skincare routine?

Description : What do you see as the correlation between skincare and wellness? What is your current skincare routine?

Last Answer : My current skincare routine compose are these steps: 1. wash my face with a gentle cleanser. 2. pat my face with a clean towel. 3. apply vitamin C serum. 4. Apply moisturizer. 5. apply eye cream. ... Skin is on the organs of the body so we should take care of it as part of our overall wellness.

Identify the correct correlation: Birds, Locations , Pale crag martin, Savannah Grassland Biome

Description : Identify the correct correlation: Birds, Locations , Pale crag martin, Savannah Grassland Biome

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Identify the correct correlation: Trees, Biomes, Ebony, Tropical Deciduous, Sandalwood

Description : Identify the correct correlation: Trees, Biomes, Ebony, Tropical Deciduous, Sandalwood

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Identify the correct correlation: Pygmies, Masais, Grassland areas of Africa, Andaman and Nicobar Islands

Description : Identify the correct correlation: Pygmies, Masais, Grassland areas of Africa, Andaman and Nicobar Islands

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Why can't you use a scatter plot that has no correlation to make a prediction?

Description : Why can't you use a scatter plot that has no correlation to make a prediction?

Last Answer : Need answer

What does a correlation of -0.9 mean'?

Description : What does a correlation of -0.9 mean'?

Last Answer : as one variable increases the other variable decreases

What does it means to have a correlation in a scatter plot?

Description : What does it means to have a correlation in a scatter plot?

Last Answer : A correlation exists in a scatter plot if there is a generaltrend in the outputs as inputs increase. If the outputs generallyincrease in value, then there is a positive correlation. If theoutputs generally decrease in value, then there is a negativecorrelation.

What scenario is best illustrates the concept of illusory correlation?

Description : What scenario is best illustrates the concept of illusory correlation?

Last Answer : A person claims red cars are unsafe even though studies show no correlations between the color and safety of cars [APEX]

What does a correlation group do in a research study?

Description : What does a correlation group do in a research study?

Last Answer : Feel Free to Answer

When Two events have a relationship of correlation rather than causation?

Description : When Two events have a relationship of correlation rather than causation?

Last Answer : Feel Free to Answer

What scenario is the best illustrates the concept of illusory correlation?

Description : What scenario is the best illustrates the concept of illusory correlation?

Last Answer : a person believes crossing his fingers brings good luck despite studies demonstrating that it does not. -apex

Which lowercase letter is usually used to represent a correlation coefficient?

Description : Which lowercase letter is usually used to represent a correlation coefficient?

Last Answer : It is r.

What is the correlation between weight loss and energy level?

Description : What is the correlation between weight loss and energy level?

Last Answer : Weight loss, if done correctly with a healthy diet and moderate exercise, can actually increase your energy levels. However, crash diets or overexercise can make you feel tired and weak.

Is there a correlation between exercise and burning calories?

Description : Is there a correlation between exercise and burning calories?

Last Answer : Any physical activity requires energy which is measured in calories (or joules in the metric system). For instance to lose weight you'd want to burn fat by consuming fewer calories from the food you eat than those which are burned up in physical activities.

What does a correlation coefficient of r -0.01 imply about the graph of a data set?

Description : What does a correlation coefficient of r -0.01 imply about the graph of a data set?

Last Answer : It suggests that there is very little evidence of a linear relationship between the variables.

What is the correlation between coronary heart disease and smoking?

Description : What is the correlation between coronary heart disease and smoking?

Last Answer : Smoking is a major cause of atherosclerosis " a buildup of fatty substances in the arteries. Atherosclerosis occurs when the normal lining of the arteries deteriorates, the walls of the arteries thicken ... When one or more of the coronary arteries are completely blocked, a heart attack may occur.

Where can I find information about the correlation between certain foods and people with blood type B?

Description : Where can I find information about the correlation between certain foods and people with blood type B?

Last Answer : WebMD as plenty of information and is the most "official" website that you will find for this type of information. Different foods react to blood types in different ways. There are charts set up to determine which foods are best for you.

Correlation lies between

Description : Correlation lies between

Last Answer : Ans. -1 to +1

Fill in the blank. There is _______ correlation between project complexity and project risk. Select one:a. an unknown b. a positive c. no d. a negative e. a general

Description : Fill in the blank. There is _______ correlation between project complexity  and project risk. Select one: a. an unknown b. a positive c. no d. a negative e. a general

Last Answer : b. a positive

For turbulent flow in a tube, the heat transfer co-efficient is obtained from the Dittus-Boelter correlation. If the tube diameter is halved and the flow rate is doubled, then the heat transfer co-efficient will change by a factor of (A) 1 (B) 1.74 (C) 6.1 (D) 37

Description : For turbulent flow in a tube, the heat transfer co-efficient is obtained from the Dittus-Boelter correlation. If the tube diameter is halved and the flow rate is doubled, then the heat transfer co-efficient will change by a factor of (A) 1 (B) 1.74 (C) 6.1 (D) 37

Last Answer : (C) 6.1

The Sieder-Tate correlation for heat transfer in turbulent flow in pipe gives Nu α Re 0.8 , where, Nu is the Nusselt number and Re is the Reynolds number for the flow. Assuming that this relation is valid, the heat transfer co-efficient varies with the pipe diameter (D) as (A) D-1.8 (B) D-0.2 (C) D0.2 (D) D1.8

Description : The Sieder-Tate correlation for heat transfer in turbulent flow in pipe gives Nu α Re 0.8 , where, Nu is the Nusselt number and Re is the Reynolds number for the flow. Assuming that this relation is valid, the heat transfer co-efficient ... pipe diameter (D) as (A) D-1.8 (B) D-0.2 (C) D0.2 (D) D1.8

Last Answer : (B) D-0.2