1 vote
Approximately what percentage of scores fall within one standard deviation of the mean in a normal distribution?
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Approximately what percentage of scores fall within one standard deviation of the mean in a normal distribution?
1). 34%
2). 95%
3). 99%
4). 68%
2 answers
1 vote
Following the empirical rule:
- Around 68% of scores are between 40 and 60.
- Around 95% of scores are between 30 and 70.
- Around 99.7% of scores are between 20 and 80.
Therefore the ans could be 68%
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