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The components in fair testing are: A. Developing and Selecting Appropriate Tests B. Administering and Scoring Tests C. Reporting and Interpreting Test Results D. Informing Test Takers
The choice of one-tailed or two-tailed tests follows the logic of the hypothesis that is being tested! The one-tailed test, if appropriate, will be more powerful.
P (selecting a king) = 4/52 = 1/13
The probabiliy of selecting odd or prime numbers from 1 to 50. First find out the probability of selecting odd numbers : 25/50 is 1/2. Lets find out the probability of selecting prime numbers: 15 / 50 . so, total is 40/ 50 is 0.82.
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