Correlation coefficient is the numerical representation of how one variable predicts the change of the other. In this case, if the AP tests scores and the SAT scores have 0.93 correlation coefficient, this means that the two results move in the same direction. When AP test results go up, then we can say that SAT scores will go up too, same also if one goes down, so does the other.
Answer:
0.7777...
Step-by-step explanation:
if you insert it in a calculator
7/9=0.777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777....
till infinity
Answer:
$98.9.
Step-by-step explanation:
1. <em>We reduce the original price by 20%.</em>
That is $115 - ($115*0.2)=$92
2. <em>We add 7.5% tax on the discounted price to get the final price.</em>
$92+($92*.075)=$98.9
<u>Final price is $98.9</u>
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