In a Normal Distribution of Test Scores

question 162

Multiple Choice

In a normal distribution of test scores:

• A)all the scores fall within ±1 standard deviation of the mean
• B)approximately 68% of the scores fall within ±2 standard deviations of the mean
• C)approximately 50% of the scores fall within ±1 standard deviation of the mean
• D)approximately 68% of the scores fall within ±1 standard deviation of the mean