### Class Size and Performance StudyA researcher conducted a study on the relationship between class size and class performance. He took a random sample of classes offered at the college and recorded the number of students in each class. The frequency distribution below represents the students in each of the classes chosen.#### Frequency Distribution Table| # of students | Frequency (f) ||---------------|---------------|| 10 - 17 | 12 || 18 - 25 | 18 || 26 - 33 | 25 || 34 - 41 | 23 || 42 - 49 | 11 |#### Questionsb) What is the midpoint of the 3rd class? (round to 1 decimal) - **Answer:** c) What is the lower class limit of the 4th class? - **Answer:**d) What are the class bounds for the 2nd class? - **Answer:** , e) What is the sum of the frequencies ($\sum f$)? - **Answer:**

Name: ### Class Size and Performance StudyA researcher conducted a study on
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Description: ### Class Size and Performance StudyA researcher conducted a study on the relationship between class size and class performance. He took a random sample of classes offered at the college and recorded the number of students in each class. The frequen

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10 - 17 12 18 - 25 18 26 33 25 34 41 23 42 - 49 11 b) What is the midpoint of the 3rd class? (round to 1 decimal) c) What is the lower class limit of the 4th class? d) What are the class bounds for the 2nd class? e) What is theEf?

10 - 17 12 18 - 25 18 26 33 25 34 41 23 42 - 49 11 b) What is the midpoint of the 3rd class? (round to 1 decimal) c) What is the lower class limit of the 4th class? d) What are the class bounds for the 2nd class? e) What is theEf?

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Concept explainers

Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence. It was invented by German mathematician Carl Friedrich Gauss.

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### Class Size and Performance Study

A researcher conducted a study on the relationship between class size and class performance. He took a random sample of classes offered at the college and recorded the number of students in each class. The frequency distribution below represents the students in each of the classes chosen.

#### Frequency Distribution Table

| # of students | Frequency (f) |
|---------------|---------------|
| 10 - 17 | 12 |
| 18 - 25 | 18 |
| 26 - 33 | 25 |
| 34 - 41 | 23 |
| 42 - 49 | 11 |

#### Questions

b) What is the midpoint of the 3rd class? (round to 1 decimal)
- **Answer:**

c) What is the lower class limit of the 4th class?
- **Answer:**

d) What are the class bounds for the 2nd class?
- **Answer:** ,

e) What is the sum of the frequencies ($\sum f$)?
- **Answer:**

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