The graph illustrates a normal distribution for the prices paid for a particular model of HD television. The mean price paid is $1600 and the standard deviation is $140.What is the approximate percentage of buyers who paid less than $1320?What is the approximate percentage of buyers who paid less than $1180? The image displays a portion of an educational platform focused on teaching statistics, specifically regarding normal distribution and the 68-95-99.7 rule.### Graph ExplanationThe graph is a bell-shaped curve representing a normal distribution of prices. The x-axis is labeled "Distribution of Prices" with tick marks at intervals from 1180 to 2020. The peak of the graph is around the midpoint, suggesting the mean price.### Questions and Content1. **Platform**: STAC Moodlerooms for a course titled MATH 120 - Section B, Fall 2020.2. **Course Navigation**: Links to sections like 'Week 1: Variables and Data Wrangling', 'Week 2: Measures of Center, Scatterplots, the Grammar of Graphics', and others.3. **Current Content**: - Questions related to the graph. - Example: "What is the approximate percentage of buyers who paid between $1600 and $1740?" with a correct result of 34%.### Educational ContextThe lesson is part of a series on statistical distributions, aiming to help students understand key concepts of normal distribution and apply the 68-95-99.7 rule.### Navigation- Progress through lectures, with the next topics being 'Z-scores'.This setup helps students grasp statistical concepts through interactive questions, graphs, and structured course materials.

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Answered: The graph illustrates a normal…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The graph illustrates a normal distribution for the prices paid for a particular model of HD television. The mean price paid is $1600 and the standard deviation is $140.

What is the approximate percentage of buyers who paid less than $1320?

What is the approximate percentage of buyers who paid less than $1180?

The image displays a portion of an educational platform focused on teaching statistics, specifically regarding normal distribution and the 68-95-99.7 rule.

### Graph Explanation
The graph is a bell-shaped curve representing a normal distribution of prices. The x-axis is labeled "Distribution of Prices" with tick marks at intervals from 1180 to 2020. The peak of the graph is around the midpoint, suggesting the mean price.

### Questions and Content
1. **Platform**: STAC Moodlerooms for a course titled MATH 120 - Section B, Fall 2020.
2. **Course Navigation**: Links to sections like 'Week 1: Variables and Data Wrangling', 'Week 2: Measures of Center, Scatterplots, the Grammar of Graphics', and others.
3. **Current Content**:
- Questions related to the graph.
- Example: "What is the approximate percentage of buyers who paid between $1600 and $1740?" with a correct result of 34%.

### Educational Context
The lesson is part of a series on statistical distributions, aiming to help students understand key concepts of normal distribution and apply the 68-95-99.7 rule.

### Navigation
- Progress through lectures, with the next topics being 'Z-scores'.

This setup helps students grasp statistical concepts through interactive questions, graphs, and structured course materials.

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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