Karl Pearson's coefficient of correlation between two variables is
A. The product of their standard deviations
B. The square root of the product of their regression coefficients
C. The covariance between the variables
D. None of the above
Answer: Option B
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A. The central limit theorem
B. The law of statistical regularly
C. The law of inertia of large numbers
D. None of the above
The difference between sample statistic and its corresponding population parameter is
A. Sampling error
B. Measurement error
C. Coverage error
D. Non-response error
A. Both (A) and (R) are true
B. (A) is true, but (R) is false
C. (A) is false, but (R) is true
D. Both (A) and (R) are false
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