**Title: Analysis of Performers' Star Ratings in a Talent Competition****Introduction**The data in the figure below represents the number of stars earned by 140 performers in a talent competition. The graph provides a visual representation of the distribution of star ratings among the performers. **Graph Description**- **X-Axis (Number of Stars):** This axis represents the number of stars awarded to the performers, ranging from 0 to 5.- **Y-Axis (Percentage of Performers):** This axis represents the percentage of the total 140 performers who received each star rating, ranging from 0% to 35%.- **Data Bars:** Each bar indicates the percentage of performers who earned a specific number of stars. **Graph Analysis**Detailed observations from the graph:- **0 Stars:** Approximately 10% of the performers received 0 stars.- **1 Star:** Around 15% of the performers received 1 star.- **2 Stars:** A significant 30% of the performers received 2 stars, the highest percentage among all ratings.- **3 Stars:** About 20% of the performers received 3 stars.- **4 Stars:** The percentage decreases to approximately 5% for those who received 4 stars.- **5 Stars:** Similarly, around 5% of the performers received 5 stars as well.**Question for Analysis**How many performers earned exactly 3 stars? (Be careful - compare the question wording to the scale on the graph)**Calculation Technique**To find the number of performers who earned exactly 3 stars:1. Identify the percentage of performers who earned 3 stars from the graph, which is 20%.2. Calculate the number of performers: \[(20\% \times 140 performers) = 28 performers\]**Answer Submission**- **Input Box:** [ ]- **Check Answer Button:** [Check Answer]*Please enter your answer in the input box above and then click "Check Answer" to verify.*---This educational content is designed to help students understand how to interpret bar graphs and apply percentage calculations to real-world data. Answers and explanations are provided to facilitate learning and comprehension.

From the given graph we want to find how many performance earned exactly 3 stars.

The data in the figure below represents the number of stars earned by 140 performers in a tal competition. 35 30 25 20 15 10 5 0 1 2 3 4 5 Number of Stars How many performers earned exactly 3 stars? (be careful - compare the question wording to tl scale on the graph) Check Answer Percentage of Performers (N = 140)

The data in the figure below represents the number of stars earned by 140 performers in a tal competition. 35 30 25 20 15 10 5 0 1 2 3 4 5 Number of Stars How many performers earned exactly 3 stars? (be careful - compare the question wording to tl scale on the graph) Check Answer Percentage of Performers (N = 140)

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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Concept explainers

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.

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**Title: Analysis of Performers' Star Ratings in a Talent Competition**

**Introduction**
The data in the figure below represents the number of stars earned by 140 performers in a talent competition. The graph provides a visual representation of the distribution of star ratings among the performers.

**Graph Description**
- **X-Axis (Number of Stars):** This axis represents the number of stars awarded to the performers, ranging from 0 to 5.
- **Y-Axis (Percentage of Performers):** This axis represents the percentage of the total 140 performers who received each star rating, ranging from 0% to 35%.
- **Data Bars:** Each bar indicates the percentage of performers who earned a specific number of stars.

**Graph Analysis**
Detailed observations from the graph:
- **0 Stars:** Approximately 10% of the performers received 0 stars.
- **1 Star:** Around 15% of the performers received 1 star.
- **2 Stars:** A significant 30% of the performers received 2 stars, the highest percentage among all ratings.
- **3 Stars:** About 20% of the performers received 3 stars.
- **4 Stars:** The percentage decreases to approximately 5% for those who received 4 stars.
- **5 Stars:** Similarly, around 5% of the performers received 5 stars as well.

**Question for Analysis**
How many performers earned exactly 3 stars? (Be careful - compare the question wording to the scale on the graph)

**Calculation Technique**
To find the number of performers who earned exactly 3 stars:
1. Identify the percentage of performers who earned 3 stars from the graph, which is 20%.
2. Calculate the number of performers: \[(20\% \times 140 performers) = 28 performers\]

**Answer Submission**
- **Input Box:** [ ]
- **Check Answer Button:** [Check Answer]

*Please enter your answer in the input box above and then click "Check Answer" to verify.*

---

This educational content is designed to help students understand how to interpret bar graphs and apply percentage calculations to real-world data. Answers and explanations are provided to facilitate learning and comprehension.

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