Mathematics, 10.12.2019 02:31, christhegreat1

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a pitcher for a professional baseball team allows runs in the first nine games he starts this season. let a be the set of the number of runs allowed by the pitcher in his first nine starts.

in the tenth game he starts, he allows 9 runs. let b represent the set of the number of runs allowed in all ten games he has started.

select the true statements.

including the runs allowed in the tenth game does not cause the spread of the data to change.
the median of a is the same as the median of b.
the interquartile range of a is 1 less than the interquartile range of b.
the median of b is 1 run more than the median of a.
the interquartile range of b is greater than the interquartile range of a.

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a pitcher for a professional baseball team allows runs in the...