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need the table
well for part b the answer would be w because the average represents the average ant school w has the highest mean
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okay well for part a you have to use the last column do you understand what standard deviation represents?
okay well just incase you don't it basically means how accurate a value is https://en.wikipedia.org/wiki/Standard_deviation
the higher the deviation the less accurate
basically which of the three schools has the lowest standard of deviation
by the way this is the first time iv ever heard about standard deviation so im not 100 percent sure i would read the wiki if i was you
well for this question I think you need to be looking at measures of spread
so I'd be looking for smallest range, IQR and standard deviation as these all measure the spread of a data set.
that, for me would be the most consistent
My answer for part A is above...
Rule: the lower the standard deviation, the closer the scores get and clump together. The closer the scores, the more consistent the data.
The symbol \(\Large \sigma\) is the greek letter symbol sigma (lower case)
it represents the standard deviation