Use the formula (zy)i<span> = (y</span>i<span> – ȳ) / s </span>y<span> and calculate a standardized value for each y</span>i<span>. Add the products from the last step together. Divide the sum from the previous step by n – 1, where n is the total number of points in our set of paired data. The result of all of this is the correlation coefficient </span>r<span>.</span>
Answer:
255
Step-by-step explanation:
we know that
the equation of a circle with the center at the origin is equal to
step 1
with the point (3,0) find the value of the radius
substitute the values of
in the equation of the circle above
so
step 2
with the radius find the area of the circle
area of the circle is equal to
for 
units²
therefore
the answer is
the area of the circle to the nearest hundredth is units²
The line segment is 10 units long, the point that divides it can be 3 up or 7 up from B.
Therefore, the y-value can be -1 or 3.
