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A maths teacher is analysing the marks of her cclass in a recent exam. she has noted the following: max score: 77 min score: 34 mean score 52 modal score: 49. next day she adds another student's score 95, who took the test another day. which of the following measures will NOT change as a result: Range, Max Value, Min Value, Mean, Median or Mode?

1 Answer

4 votes
Since the new test score is 95 and that’s better than the previous max score, this new score will not impact the min value.
Since no one previously had scored that high, then the mode will also not change.

The range definitely changes, this is the new max value (so that changed), the mean will change with a new top score.

Since this is a new top score, the median will LIKELY change, but I think you could construct a situation where the median score doesn’t change. But that would be an unusual situation.
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