The 25 children in a class each roll a fair die 30 times and record the number of sixes they obtain. Find an estimate of the probability that the mean number of sixes recorded for the class is less than 4.5.
How can I find the sample mean and standard deviation?
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Central limit theorem again... watch
- Thread Starter
- 14-04-2011 15:29
- 14-04-2011 15:33