Suppose you have a set of data points with a correlation of 0.85. What is the variance? A. Variance = √ r = 0.92195 B. Variance
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<u>Given expression is </u>
can be rewritten as
We know,
And
So, using this identity, we
can be further rewritten as
<u>Hence, </u>
when you use all prime, non-one numbers for b and c, it cannot be factored most of the time
example
1x^2+7x+5
a=1
b=7
c=5
x=
x=
x=
x=
x=
or 
example
1x^2+7x+5
a=1
b=7
c=5
x=
x=
x=
x=
x=