For the Mathematics scores of a particular class, the variance is s2 If each student’s score is increased by ?? points, then variance of the set of new scores is, A] s2 B] ??2s2 C] ?? + s2 D] ??2+ s2
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दोस्ती किस से न थी किस से मुझे प्यार न था, जब बुरे वक़्त पे देखा तो कोई यार न था।
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