Respuesta :

Answer:

the median is 26

Step-by-step explanation:

isamarie4

Answer:

26

Step-by-step explanation:

first list in numerical order

18,20,20,21,25,27,28,30,30,31

/ / / / / / / /

you are left with 25 and 27 and in-between that is 26 so 26 is the median

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