Find the sum of 1/6and 7/12 in lowest terms.
2 answers:
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We can check each of these using the Pythagorean Theorem, 
Option A:
.25 + 1.44 = 1.691.69 = 1.69
This option works
Option B
1 + 4 = 9
5 ≠ 9
This option does not work, but let's check the others to make sure
Option C:
36 + 64 = 100
100 = 100
This option works
Option D:
9 + 16 = 25
25 = 25
This option works
So, after doing the calculations, we see that option B does not work
Option A:
.25 + 1.44 = 1.691.69 = 1.69
This option works
Option B
1 + 4 = 9
5 ≠ 9
This option does not work, but let's check the others to make sure
Option C:
36 + 64 = 100
100 = 100
This option works
Option D:
9 + 16 = 25
25 = 25
This option works
So, after doing the calculations, we see that option B does not work
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.