Answer:
mark brainlyest and I will answer
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>
1 6
--- = ---
a 18
- simplify 6/18, which should be 1/3. therefore, a = 3.
Answer:
its option b
9:10
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