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Statistics for Data Science I, Qualifier

May 2022 term, 7 Aug 2022, Set QPE

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Question 1

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The age of the participants in a dance competition are plotted in a stem and leaf plot as shown in Figure 1.2.Q.

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The age of the participants in a dance competition are plotted in a stem and leaf plot as shown in Figure 1.2.Q. Figure from the original question paper What is the value of population standard deviation of the first 2n natural numbers, i.e. 1, 2, 3, ..., 2n – 2, 2n – 1, 2n? Figure from the original question paper In the last 5 innings of a school cricket tournament, Manish scored 2, 4, 10, 12, and 14 runs. The population mean and the population variance of the scores of his last 7 innings are 8 and 16 respectively. What are the remaining two scores?