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The mean and standard deviation of marks of 10 students in a class test of 10 marks is 7 and 1 respectively. The marks of A is not known and the standard deviation of the remaining 9 students is 0. If A does not score full marks, then the marks of A is |
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Answer» The mean and standard deviation of marks of 10 students in a class test of 10 marks is 7 and 1 respectively. The marks of A is not known and the standard deviation of the remaining 9 students is 0. If A does not score full marks, then the marks of A is |
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