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Juliette [100K]
3 years ago
13

How would you do these problems i don't understand how to do them? (Attached!)

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
3 0
#9 . D    Feline = $1.30/lbs          Kitty Kibbles = $1.40/lbs
#10.B    5:6 = 30:36
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With a correlation coefficient of 0.109 you can not be confident at all; this is about as close to a random guess you could get.  

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Lines of best fit are used to try to make a correlation (relationship) about data that will either be positive (uphill), negative (downhill) or no correlation (points are scattered).  Correlation coefficients based off of a line of best fit will fall between -1 and +1 where -1 would represent a perfect negative relationship and +1 would represent a perfect positive relationship.  A correlation coefficient of 0 would indicate that there is no relationship.  So, if your data shows a correlation coefficient of 0.109, which is closest to 0 on a number line, then you can't be sure that your data has a very close relationship.


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