A new smartwatch is manufactured in one part of a factory, then secured for shipping in another, independent part of the factory. The weight of the smartwatch has a mean of 62 grams and a standard deviation of 1.0 grams. The weight of the packaging (box, user's guide, bubble wrap, etc.) has a mean of 456 grams and a standard deviation of 6 grams. Together, the distribution of the weight of the smartwatch and its packaging would have the following mean and standard deviation:
(A)Mean 518 grams; standard deviation 7.0 grams (B)Mean 518 grams; standard deviation 3.5 grams (C)Mean 518 grams; standard deviation 6.1 grams (D)Mean 394 grams; standard deviation 6.1 grams
C