ISS Statistics Paper I (New 2016 MCQ Pattern): Questions 245 - 248 of 404
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Question number: 245
Question number: 246
Question number: 247
A manufacturer does not know the mean and SD of the diameter of a ball bearing he is producing. However, a machine rejects all bearings larger than 2.5 cm and those under 2 cm in diameter. Out of 5000 ball bearings 9 % are rejected as too small and 6.5 % as too big. What is the mean and standard deviation of the ball bearings produced?
|d.||All of the above|
Question number: 248
An n-dimensional rectangular box with sides is to be constructed. The volume is . The edge-length of an n-cube with the same volume as the random box is . Let be i. i. d. uniform random variables over the interval Which of the following statements is/are correct regarding this?
1) Expected edge length captures the idea of the volume of the box.
2) Expected edge length does not captures the idea of the volume of the box.
1 and 3
2 and 3
|d.||Question does not provide sufficient data or is vague|