Suppose (x1, y1), (x2, y2), ..., (xn, yn) are bivariate measurements where n > 2. Assume that all the xi are distinct and all the yi are distinct too. Let rp denote the ordinary (Pearson) correlation coefficient and rs denote the (Sp earman) rank correlation coefficient. If rp = 1, which of the following is true?

Which of the following statements about the null hypothesis (H0) is incorrect?

The area under the normal curve within mean ± 2σ covers approximately:

Arrange the following pairs of standard deviation (σ) and total number of samples (n) in decreasing order of their standard error (SE = σ√n): A. σ = 1.6, n = 16 B. σ = 1.5, n = 25 C. σ = 0.6, n = 36 D. σ = 1.4, n = 49 Choose the correct answer from the options given below: