4) Nine elephants have a mean average weight 2300kg. A 10th elephant weights 2500kg. Find the mean weight of all 10 elephants.
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Answer:
2320kg
Step-by-step explanation:
No. of elephants = 9
Mean of their weights = 2300kg
Total weight = 2300 × 9 = 20700kg
Weight of the other elephant = 2500kg
Total weight of all the elephants =
20700 + 2500kg = 23200kg
Mean = 23200/10 = 2320kg
Hence, the mean is 2320kg
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