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ksiandua07
31.01.2020 •
Mathematics
Two variables are correlated with r = -0.23. which description best describes the strength and direction of the association between the variables?
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Ответ:
Negative and weak correlation
Step-by-step explanation:
Correlation is another word for association. If there is a positive association between two variables, i.e. whenever x increases y decreases then we will have covariance (x,y) as positive and hence correlation also positive
Correlation denoted by r lies between -1 and 1
If |r| is nearer to 1, we say strong correlation otherwise weak correlation
Two variables x and y are said to have correlation as -0.23
Since 0.23 is nearer to 0 than to 1 we say they are weakly correlated
Since r has a negative sign, we find that the two variables are negatively correlated and also weak.
Ответ:
Step-by-step explanation:
Subtract 32 from both sides
Multiply both side by 5/9
F= 41
41° F = 5° C