Which of the Following Is True Regarding the Standard Deviation

question 16

Multiple Choice

Which of the following is true regarding the standard deviation?

• A) It indicates the degree of variation in the values in such a way as to be translatable into a normal curve.
• B) One standard deviation above and below the midpoint in a normal distribution includes approximately 68% of the area underneath the curve.
• C) + or - 1.96 standard deviations above and below the midpoint in a normal distribution includes 95% of the area underneath the curve.
• D) The standard deviation can be approximated by dividing the range of the data by 6.
• E) All of the above are correct.

Apply knowledge of Pearson product-moment correlation coefficient in practical scenarios.

Calculate and interpret mean scores from a set of data.

Understand the concept of effect size and its importance in statistical analysis.

Utilize regression equations for prediction purposes based on known variables.

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