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InterviewSolution
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30. Let S be the set of all 2 x 2 symmetric matrices whose entries are either zero or one. A matrix X is chosen from S. The probability that the determinent of X is not zero is (A) 1 / 3 (B) 1 / 2 (C) 3 / 4 (D) 1 / 4 (E) 2 / 9 |
| Answer» 30. Let S be the set of all 2 x 2 symmetric matrices whose entries are either zero or one. A matrix X is chosen from S. The probability that the determinent of X is not zero is (A) 1 / 3 (B) 1 / 2 (C) 3 / 4 (D) 1 / 4 (E) 2 / 9 | |