Answer:
Step-by-step explanation:
1) Add 8 to both sides.
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2) Divide both sides by 2.
3) Simplify to 4.
4) Take the cube root of both sides.
5) Rewrite 4 as 2².
6) Use this rule: .
Decimal Form: 1.587401
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Check the answer:
1) Let .
2) Use this rule: .
3) Simplify 2 * 3 to 6.
4) Simplify 6/3 to 2.
5) Use Product Rule: .
6) Simplify 2^3 to 8.
8 - 8 = 0
7) Simplify 8 - 8 to 0.
0 = 0
Thank you,
Eddie
Answer:
The proportion of the variability seen in math achievement that can be predicted by math attitude is 0.78, the same value as the correlation coefficient.
Step-by-step explanation:
The correlation coefficient r between this two variables is found to be 0.78.
This coefficient can be calculated as:
where SSY' is the sum of the squares deviation from the mean for the predicted value and SSY is the sum of the squares deviation from the mean for the criterion variable.
Then, the value of the coefficient r is giving the proportion of the variability seen in the criterion value Y that can be explained by the predictor variable X.