the mean mass of 20 men is 63.5kg. the mean mass of 15 women is 53.2 kg. calculate the mean mass of all 35 people.
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Answer:
Mean mass of all 35 people = 59.09 kg
Step-by-step explanation:
Total mass of 20 men's = 63.5 ×20 = 1270 kg
Total mass of 15 women's = 53.2 × 15 = 798 kg
Mean mass of all 35 people = (1270 + 798) / 35
= 2068 / 35
= 59.09 kg
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