The mean of 20 numbers is 8.5 and mean of 30 other number is 11.5.determine mean of 50
numbers taken together.
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hello friend your answer is????
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Answer:
Answer is 10.3
Step-by-step explanation:
Mean of 20 numbers= 8.5*20=170
Mean of 30 numbers= 11.5*30=345
Mean if 50 numbers=(170+345)/50= 10.3
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