e) Use the Empirical Rule to approximate the percentage of people who take the SAT that will I have a mathematics SAT score of at least 397? • There is about 34 score of a least 397. X% of people who take the SAT that will have a mathematics SAT

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question

E)Use the empirical rule to approximate the percentage of people who take the SAT that will have a mathematics SAT score at least 397. 

---
### Understanding SAT Mathematics Scores with the Empirical Rule

The mean mathematics SAT score for all people who took the SAT in a particular year was 514 with a standard deviation of 117. Assume the mathematics SAT score is normally distributed.

#### a) Identifying Components:
**Individual, Variable, and Type of Variable:**
- **The individual** is a randomly selected person who took the SAT.
- **The variable** collected from each individual is the mathematics SAT score.
- **This variable** is a quantitative -- discrete variable.

#### b) Definition of Random Variable X:
**Random Variable X:**
- The random variable X = the mathematics SAT score of a randomly selected person who took the SAT.

#### c) Application of Empirical Rule:
**Empirical Rule Application:**
- The Empirical Rule can only be used to approximate probabilities for problems where the random variable has a normal distribution. Since the mathematics SAT score is normally distributed, the Empirical Rule is applicable here.

#### d) Calculating Probabilities using Empirical Rule:
**Percentage of People Scoring Between 163 and 631:**
- There is about 83.85% of people who take the SAT that will have a mathematics SAT score between 163 and 631.

#### e) Percentage of People Scoring At Least 397:
**Percentage of People Scoring At Least 397:**
- There is about 34% of people who take the SAT that will have a mathematics SAT score of at least 397. Note that this part contained a mistake as the correct percentage should be analyzed and corrected according to the accurate use of the Empirical Rule.

*Note: The Empirical Rule states that approximately 68% of data within one standard deviation (±1σ), 95% within two (±2σ), and 99.7% within three (±3σ).*

---

This exercise demonstrates the proper use of statistical tools and methods for analyzing normally distributed data, essential in various educational assessments and research.
Transcribed Image Text:--- ### Understanding SAT Mathematics Scores with the Empirical Rule The mean mathematics SAT score for all people who took the SAT in a particular year was 514 with a standard deviation of 117. Assume the mathematics SAT score is normally distributed. #### a) Identifying Components: **Individual, Variable, and Type of Variable:** - **The individual** is a randomly selected person who took the SAT. - **The variable** collected from each individual is the mathematics SAT score. - **This variable** is a quantitative -- discrete variable. #### b) Definition of Random Variable X: **Random Variable X:** - The random variable X = the mathematics SAT score of a randomly selected person who took the SAT. #### c) Application of Empirical Rule: **Empirical Rule Application:** - The Empirical Rule can only be used to approximate probabilities for problems where the random variable has a normal distribution. Since the mathematics SAT score is normally distributed, the Empirical Rule is applicable here. #### d) Calculating Probabilities using Empirical Rule: **Percentage of People Scoring Between 163 and 631:** - There is about 83.85% of people who take the SAT that will have a mathematics SAT score between 163 and 631. #### e) Percentage of People Scoring At Least 397: **Percentage of People Scoring At Least 397:** - There is about 34% of people who take the SAT that will have a mathematics SAT score of at least 397. Note that this part contained a mistake as the correct percentage should be analyzed and corrected according to the accurate use of the Empirical Rule. *Note: The Empirical Rule states that approximately 68% of data within one standard deviation (±1σ), 95% within two (±2σ), and 99.7% within three (±3σ).* --- This exercise demonstrates the proper use of statistical tools and methods for analyzing normally distributed data, essential in various educational assessments and research.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 5 steps with 1 images

Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman