The correlations between two scores X and Y equals 0.8. If both the X scores and

Question

The correlations between two scores X and Y equals 0.8. If both the X scores and the Y scores are converted to z-scores, then the correlation between the z - scores for X and the z-scores for Y would be -0.8 -0.2 0.0 0.2 0.8 Suppose that the distribution of a set of scores has a mean of 47 and a standard deviation of 14. If 4 is added to each score, what will be the mean and the standard deviation of the distribution of new scores ? Mean Standard Deviation 51 14 51 18 47 14 47 16 47 18 Urn contains exactly three bells numbered 1, 2, and 3, respectively. Random samples of two balls are drawn from the urn with replacement. The average, X^bar = X_1 + X_2/2, where X_1 and X_2 are the numbers to the selected balls, is recorded after each drawing. Which of the following describes the sampling distribution of X^bar? It cannot be determined from the information

Explanation / Answer

Solution:-

16) option (E) 0.8

17) option (A) 51 14

18) option (B)

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