Use the accompanying frequency polygon to answer the following questions. Number of E-mail Messages Sent per Day a) How many people sent five e-mail messages? b) How many people sent six or fewer e-mail messages? c) How many people were included in the survey? d) Construct a frequency distribution from the frequency polygon. e) Construct a histogram from the frequency distribution in part (d). 10 12 Number of Messages Sent 6 7 2 8 8 9 10 4 (Type whole numbers.) e) Construct a histogram from the frequency distribution in part (d). OA. O B. Oc. Number of E-mail Messages Sent Number of E-mail Messages Sent Number of E-mail Messages Sent 10 Number of Messages Sent 10 Number of Messages Sent 10 Number of Messages Sent Number of People Number of People Number of People Number of People

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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7; choose graph choice :)
**Educational Website Content: Frequency Polygon Analysis**

### Use the Frequency Polygon to Answer the Following Questions:

**Graph Details:**
The graph displays a frequency polygon for the "Number of E-mail Messages Sent per Day." The x-axis represents the number of messages sent (ranging from 0 to 12), and the y-axis represents the number of people. The data points are connected with purple lines.

### Questions:

**a) How many people sent five e-mail messages?**
- **Answer:** Look for the point on the graph where the x-value is 5 and find the corresponding y-value.

**b) How many people sent six or fewer e-mail messages?**
- **Answer:** Sum the y-values for x-values 0 through 6.

**c) How many people were included in the survey?**
- **Answer:** Sum all the y-values across the x-axis range.

**d) Construct a frequency distribution from the frequency polygon.**
- **Frequency Table Derived from Graph:**
  - 0 messages: 3 people
  - 2 messages: 2 people
  - 4 messages: 8 people
  - 6 messages: 6 people
  - 8 messages: 10 people

**e) Construct a histogram from the frequency distribution in part (d).**

**Choose the correct histogram from options A, B, and C.**

Each option displays a histogram labeled "Number of E-mail Messages Sent," showing bars that represent the frequency of emails sent within specific ranges.

To match the frequency table:
- The correct histogram will have bars reflecting the frequencies: 3 for 0, 2 for 2, 8 for 4, 6 for 6, and 10 for 8 messages sent.

This visual representation helps understand data distribution more effectively and is a fundamental statistical tool.

**Note:** Ensure to refer to the graph to verify specific data values accurately while answering questions a-c.
Transcribed Image Text:**Educational Website Content: Frequency Polygon Analysis** ### Use the Frequency Polygon to Answer the Following Questions: **Graph Details:** The graph displays a frequency polygon for the "Number of E-mail Messages Sent per Day." The x-axis represents the number of messages sent (ranging from 0 to 12), and the y-axis represents the number of people. The data points are connected with purple lines. ### Questions: **a) How many people sent five e-mail messages?** - **Answer:** Look for the point on the graph where the x-value is 5 and find the corresponding y-value. **b) How many people sent six or fewer e-mail messages?** - **Answer:** Sum the y-values for x-values 0 through 6. **c) How many people were included in the survey?** - **Answer:** Sum all the y-values across the x-axis range. **d) Construct a frequency distribution from the frequency polygon.** - **Frequency Table Derived from Graph:** - 0 messages: 3 people - 2 messages: 2 people - 4 messages: 8 people - 6 messages: 6 people - 8 messages: 10 people **e) Construct a histogram from the frequency distribution in part (d).** **Choose the correct histogram from options A, B, and C.** Each option displays a histogram labeled "Number of E-mail Messages Sent," showing bars that represent the frequency of emails sent within specific ranges. To match the frequency table: - The correct histogram will have bars reflecting the frequencies: 3 for 0, 2 for 2, 8 for 4, 6 for 6, and 10 for 8 messages sent. This visual representation helps understand data distribution more effectively and is a fundamental statistical tool. **Note:** Ensure to refer to the graph to verify specific data values accurately while answering questions a-c.
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