The required value is 
Step-by-step explanation:
Weight of ants = 
Weight of elephant= 
We need to find, the total weight of about how many ants equals to the weight of an oversized elephant.
The equation given is:

We need to find a:
Solving:

So, the required value is 
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Answer:
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Step-by-step explanation:
To find the answer all you need to do is divide 60/5
Answer: 17.320508075689
Step-by-step explanation:
Answer: 0.064
Step-by-step explanation:
The formula to find the margin of error :-

Given : Significance level : 
Critical value : 
Sample size : n=400
The proportion of people support the candidate :p=0.44
Then , 
Hence, Margin of error = 0.064