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An optically active D-aldopentose produced an optically inactive alditol upon treatment with NaBH4. When this aldopentose was subjected to a Ruff degradation, a D-aldotetrose was generated. This aldotetrose gave an optically active aldaric acid upon oxidation with HNO3. Use these data to provide the structure of the starting D-aldopentose.
Standard Deviation
An indicator used to determine the extent of fluctuation or scatter among data points in a collection.
Central Limit Theorem
A statistical theory that states that given a sufficiently large sample size from a population with a finite level of variance, the mean of all samples from the same population will be approximately equal to the mean of the population.
Sampling Distribution
The distribution of a statistic (like the mean) that would result from taking a large number of samples from a population.
Sample Size
The number of observations or data points in a sample used to estimate characteristics of a population.
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