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From the data given below, find the no of items (N):∑xy=120,r=0.5, standard deviation of Y = 8,∑x2=90, where x and y are deviations from arithmetic mean. |
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Answer» From the data given below, find the no of items (N):∑xy=120,r=0.5, standard deviation of Y = 8,∑x2=90, where x and y are deviations from arithmetic mean. |
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