Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing Schools Business

Features Pricing Schools Business

Statistics Class Intervals and Histograms

17 Questions

1 Views

Statistics Class Intervals and Histograms

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the purpose of a histogram?

To display gaps between bars

To summarize continuous data (correct)

To summarize discrete data

To use qualitative data

How is a histogram different from a vertical bar graph?

It displays gaps between bars

It uses only qualitative data

It shows no gaps between the bars (correct)

It is not used for summarizing data

What does the relative frequency in a frequency distribution table represent?

The total frequency of all classes

The cumulative frequency

The number of class boundaries

The percentage of each class relative to the total (correct)

In the context of frequency distribution, what do class boundaries represent?

The range of values within a class (B) Signup and view all the answers

What is the formula for calculating cumulative frequency in a frequency distribution table?

$N = \sum f$ (A) Signup and view all the answers

What is a statistical question?

A question that anticipates many different responses (C) Signup and view all the answers

What is meant by variability in a set of data?

The spread or dispersion of data values in the set (C) Signup and view all the answers

Which method of presenting data is considered the simplest?

Textual Method (B) Signup and view all the answers

What does a frequency distribution table help in showing?

The distribution of data values into classes or categories (C) Signup and view all the answers

In a frequency distribution table, what are class limits?

The upper and lower boundaries of each class interval (D) Signup and view all the answers

What do class boundaries represent in a frequency distribution table?

They separate adjacent classes without gaps or overlaps (B) Signup and view all the answers

What is the class mark of a class with lower limit 10 and upper limit 20?

15 (D) Signup and view all the answers

In a Frequency Distribution Table (FDT), what does the term 'class width or size' refer to?

The distance between the lower limit of one class and the lower limit of the next class (C) Signup and view all the answers

What does relative frequency represent in a Frequency Distribution Table (FDT)?

The ratio of the class frequency to the total number of observations (A) Signup and view all the answers

Which term refers to the numbers midway between the upper limit of one class and the lower limit of the next class?

Class boundaries (D) Signup and view all the answers

What does 'Less than cumulative frequency' represent in a Frequency Distribution Table?

Number of observations less than or equal to the upper limit of the class interval (D) Signup and view all the answers

In a Frequency Distribution Table, what does 'Greater than cumulative frequency' represent?

Number of observations greater than or equal to the upper limit of the class interval (B) Signup and view all the answers