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3 years ago

7y-1=2(y+3)-2 What is y? Need this done by March 5.

Mathematics

1 answer:

victus00 [196]3 years ago

4 0

expand the brackets

7y-1=2y+4

move variable to the left side by changing the sign

7y-2y-1=4

do the same thing to the constant

7y-2y=1+4

equal to 5y=5

therefore y=q1

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Your friend finds that the correlation between shoe size and iq is r = 1. 99. what should you say about these findings?

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An error was made, correlation values can't be greater than 1.00.

The strength of the linear association between two variables is quantified by the correlation coefficient. The correlation coefficient always takes a value between -1 and 1. The 1 represents the perfect positive correlation and -1 represents the perfect negative correlation whereas the 0 represents the no correlation between two variables.

So, if the value of the correlation coefficient between shoe size and IQ is r = +1.99 then,

Analysts in some fields do not consider a correlation significant until the value is at least 0.8. However, a correlation coefficient with an absolute value of 0.9 or greater indicates a very strong relationship. 2.

Learn more about correlation values here: brainly.com/question/4219149

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2 years ago