71. Which of the following function stacks 1D arrays as columns into a 2D array?
72. The pooled estimator is a mixture of the group variances, placing greater weight on whichever has a larger sample size.
73. Point out the wrong statement.
74. Which of the following is used for creating tree maps?
75. Minimizing the likelihood is the same as maximizing -2 log likelihood.
76. Which of the following theorem states that the distribution of averages of iid variables, properly normalized, becomes that of a standard normal as the sample size increases?
77. Point out the correct statement.
78. Which of the following gave rise to need of graphs in data analysis?
79. Every open graphics device is assigned an integer greater than 2.
80. Point out the wrong statement with respect to reproducibility.
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