About how many percent of the student scores fall between -2SD and +2SD in the normal curve distribution?
A.	34.18%
B.	68.26%
C.	95.44%
D.	99.72%

In a normal distribution, approximately **95.44%** of the data falls between -2 standard deviations (-2SD) and +2 standard deviations (+2SD) from the mean.

Thus, the correct answer is:
**C. 95.44%**

Would you like to know more details about how this is calculated or its significance?

Here are 5 related questions you might find interesting:
1. What percentage of scores fall between -1SD and +1SD in a normal distribution?
2. How is the standard deviation used to describe data variability in a normal curve?
3. What is the empirical rule in statistics, and how does it apply to the normal distribution?
4. How would the percentage change if we considered scores between -3SD and +3SD?
5. How can we use the normal distribution in real-life situations, such as test scores?

**Tip**: The normal distribution is symmetric, which makes it very useful in predicting the likelihood of data points within certain ranges of the mean.

About how many percent of the student scores fall between -2SD and +2SD in the normal curve distribution?
A. 34.18%
B. 68.26%
C. 95.44%
D. 99.72%

Discover how approximately 95.44% of student scores fall between -2SD and +2SD in a normal distribution. This concept involves the empirical rule, which is a key statistical principle used to interpret data within standard deviations. Suitable for Grades 9-12.

Math Problem Statement

Solution

Ask a new question for Free

By Image

Math Problem Analysis

Mathematical Concepts

Formulas

Theorems

Suitable Grade Level

Related Recommendation