Respuesta :

xcook991

Answer:

9

Step-by-step explanation:

2,3,4,7,7,7,9,9,14,17,21

21,17,14,9,9,7,7,7,4,3,2

3,7,7,7,9,9,17,21

ADVENTUROUSBOY

mean = 9.09

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Step-by-step explanation:

mean = sum ÷ numbers

= 100 ÷ 11

= 9.09

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