Unknowndragon42
08.07.2019 •
Mathematics
Simplify the expression. 2.5 – 3.1 – 3.86 + 2.7 – 4.01
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Ответ:
-6.30
So; the answer is -6.30.
Ответ:
r represents a significant linear correlation.
Step-by-step explanation:
GIven : Linear correlation coefficient: r = 0.543
Sample size: n= 25
Significance levle:
Degree of freedom : n-2 = 25-2=23
Now, we check r critical value table for value with df = 23 and .
Critical value = ±0.396 [From r critical value table]
Since r = 0.543 > 0.396, that means there is significant linear correlation.
Hence, r represents a significant linear correlation.