The mean mass of 11 player in a football team is 65.2kg the mean mass of the team plus a substitute is 65.4kg what is the mads of the substitute
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Jawab:
the mass of a subtitute is 67,6 kg
Penjelasan dengan langkah-langkah:
mean mass = 65,4
(65,2 x 11) + x / 12 = 65,4
717,2 + x = 784,8
x = 784,8 - 717,2
x = 67,6 kg
