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Students scores in an entry exam has a mean of X=35 and a standard deviation of 5. It was agreed that 3 points should be added to every score during the moderation of the results. Determine the new values for the mean and standard deviation.
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Question e) Students scores in an entry exam has a mean of and a standard deviation of 5. It was agreed that 3 points should be added to every score during the moderation of the results. Determine the new values for the: i) mean ii) standard deviation.
Step 1: Determine the new mean. When a constant value is added to every score, the mean increases by that constant value. Original mean . Points added = 3. The new mean is .
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Question e) Students scores in an entry exam has a mean of x = 35 and a standard deviation of 5. It was agreed that 3 points should be added to every score during the moderation of the results. Determine the new values for the: i) mean ii) standard deviation. Step 1: Determine the new mean. When a constant value is added to every score, the mean increases by that constant value. Original mean x = 35. Points added = 3. New Mean = x + 3 = 35 + 3 = 38 The new mean is 38. Step