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the correlations we observe in the world around us
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∙ 11y ago
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What is a sample correlation?
If measurements are taken for two (or more) variable for a sample , then the correlation between the variables are the sample correlation. If the sample is representative then the sample correlation will be a good estimate of the true population correlation.
What are the trends of a line?
They can be positive correlation, negative correlation or no correlation depending on 'line of best fit'
What is a Correlation coefficient of 0.00457?
Evidence that there is no correlation.
Is -0.0001 a correlation coefficient?
Yes it can be a correlation coefficient.
Is 1.5 a correlation coefficient?
No, it cannot be a correlation coefficient.
Explain the correlation between Darwin's theory of natural selection and malthus' idea divine institution?
explain the correlation between Darwin's theory and Malthus' idea
The group of experimental subjects which is left natural or left unchanged is called the?
experimental group
Auto correlation and cross correlation?
Auto correlation is the correlation of one signal with itself. Cross correlation is the correlation of one signal with a different signal.
How are observational studies of populations different from experimental studies?
Observational studies observe natural phenomena without intervention, while experimental studies manipulate variables to determine cause and effect. Observational studies are useful for understanding associations, while experimental studies can establish causal relationships between variables. Experimental studies involve random assignment of participants to groups, while observational studies rely on natural groupings.
What are three types of correlations?
positive correlation-negative correlation and no correlation
Is 0.5 the strongest correlation coefficient?
No. The strongest correlation coefficient is +1 (positive correlation) and -1 (negative correlation).
What actually happens in probability is what probability?
It is experimental probability.It is experimental probability.It is experimental probability.It is experimental probability.It is experimental probability.It is experimental probability.It is experimental probability.It is experimental probability.It is experimental probability.It is experimental probability.It is experimental probability.
What is the maximum and minimum value of the correlation coefficient?
The correlation can be anything between +1 (strong positive correlation), passing through zero (no correlation), to -1 (strong negative correlation).
What is a sample correlation?
If measurements are taken for two (or more) variable for a sample , then the correlation between the variables are the sample correlation. If the sample is representative then the sample correlation will be a good estimate of the true population correlation.
What is the differnece between experimental hypothesis and directional hypothesis?
The experimental hypothesis, if stipulated like this, does not imply to be taking any specific direction in its prediction. Hence we will be in a situation were it will only refer to as either, a difference or a correlation only, the experiemntal hypothesis. However, if we decide to give direction to the experimental hypothesis, then we will have to add some information to the stipulation focusing on whether we predict that the difference involved will specifically cause an increase or decrease of the dependent variable(s), the directional hypothesis.
What would you conclude if 23 mice in the experimental group had heart attacks or coronary artery disease?
There may be a correlation between the experimental condition and an increased risk of heart attacks or coronary artery disease in mice. Further investigation is needed to determine the causation and establish a potential mechanism for this outcome.
Are negative correlation and reverse correlation same?
No.
