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1. If the mean of the original distribution of 10 scores is 4.8, what is the value of the mystery score? Explain how you calculated it.

2. Assume the mean of the original distribution of 10 scores is 4.8. For each change in the distribution described below, say whether the mean would increase (), remain unchanged (0), or decrease ():

(a) A value of 6 becomes the 11th score.

(b) A value of 4.8 becomes the 11th score.

(d) The present value of 2 is removed, leaving nine scores.

(e) The mystery value is removed, leaving nine scores. (Remember what was said above about the mystery score.)

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92680904

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