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Which of the following correlation values represents the strongest linear relationship between two quantitative variables? A)-1.0 B) 0 C) .90 D)...

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Question

Basic Math

Which of the following correlation values represents thestrongest linear relationship between two quantitativevariables?

A)-1.0
B) 0
C) .90

D) -.68

A set of test scores are normally distributed. Their mean is 100and the standard deviation is 120. These scores are converted tostandard normal z-scores. What would be the mean and median of thisstandardized normal distribution?

A)1
B)0
C)100
D)

50

Suppose the correlation between two variables, math attitude (x)and math achievement (y) was found to be .78. Based on thisstatistic, we know that the proportion of the variability seen inmath achievement that can be predicted by math attitude is:

a.22
b1.56
c.78
d

.61

Which of the following numbers will be higher, the correlationbetween X & Y (assuming that the correlation between X & Yis a positive value) or the proportion of the variability in Y thatis explained by X?

aThere is no way to tell; these two items are not related.
bThe correlation will be higher.
cThey will be the same.
dThe proportion of the variance explained will be higher.

Answer & Explanation Solved by verified expert
4.4 Ratings (796 Votes)
Q1 strongest linear relationship between two quantitative variables is 1 Answer A 10 Q2 In normal    See Answer
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