Set A {3,3,3,4,5,5,5} has a standard deviation of 1. What will the standard deviation be if every number in the set is multiplied by 7?  Answers: A) A)1 B) B)2 C) C)4 D) D)7 E) E)16
Points to remember -   1. If oneAdd/Subtractthe same amont from every term in a set, SD doesn't change.   2. If oneMultiply/Divideevery term by the same number in a set, SD changes by same number.   Hence the answer to the above question is 7
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Set A {3,3,3,4,5,5,5} has a standard deviation of 1. What will the standard deviation be if every number in the set is multiplied by 7?