Free Descriptive Statistics MCQs with Answers
238 Descriptive Statistics MCQs from Statistics, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Last updated
238 questions · page 5 of 24
41. Class _________ is the difference between two class limit?
- A. Boundary
- B. Class mark
- C. None of these
- D. Class interval
Explanation: The class interval describes the width or range of a class, commonly obtained from the difference between its limits. A class boundary is an adjusted dividing value, while the class mark is the midpoint.
Correct answer: Class interval42. Technical & Trade Journals are the source of ___________ data?
- A. Primary
- B. Secondary
- C. Ungroup data
- D. Group data
Explanation: Technical and trade journals publish information previously collected and made available by another source, so using them provides secondary data. Primary data are collected firsthand by the investigator for the current study.
Correct answer: Secondary43. A table has at least __________ part?
- A. Two
- B. Three
- C. Four
- D. Five
Explanation: A basic statistical table has at least four essential parts: the title, captions, stubs, and body. Additional parts such as source notes or footnotes may be included but are not essential in every table.
Correct answer: Four44. The stub is the containing__________________?
- A. Box head
- B. Column captions
- C. Caption
- D. Row caption
Explanation: The stub is the part of a table containing the row headings or row captions, usually placed in the first column. Boxhead and column captions belong to the headings across the top.
Correct answer: Row caption45. Data arranging into rows and columns are called______________?
- A. Frequency distribution
- B. Classification
- C. Table
- D. Tabulation
Explanation: Tabulation is the process of arranging data systematically in rows and columns. The resulting arrangement is called a table, so table describes the product rather than the process.
Correct answer: Tabulation46. In constructing a histogram which is to be taken along X-axis__________?
- A. Class interval
- B. Class frequency
- C. Class boundaries
- D. Class mark
Explanation: A histogram places class boundaries or continuous class intervals on the X-axis and frequencies on the Y-axis. Class frequency therefore belongs on the vertical axis.
Correct answer: Class boundaries47. A value get which divides a class into two equal parts is called _________________?
- A. Class interval
- B. Open interval
- C. Size
- D. Mid point
Explanation: The midpoint is found by averaging the lower and upper class limits, so it divides the class interval into two equal parts. It is also called the class mark.
Correct answer: Mid point48. The relation showing between whole and its components used chart is said to be ___________________?
- A. Component bar chart
- B. Multiple bar chart
- C. Pie Chart
- D. Simple Bar chart
Explanation: A pie chart divides a circle into sectors whose sizes represent the components of a whole. This makes the whole-to-components relationship immediately visible.
Correct answer: Pie Chart49. A graph of cumulative frequency distribution is called ________________?
- A. Histrogram
- B. Frequency Polgon
- C. Ogive
- D. None of above
Explanation: An ogive is the graph of a cumulative frequency distribution. A histogram and frequency polygon represent ordinary frequency distributions, not cumulative frequencies.
Correct answer: Ogive50. In a table, foot note and source notes are ___________________?
- A. Same
- B. Different
- C. Identical
- D. Non-identical
Explanation: Footnotes explain special information about entries in a table, whereas source notes identify where the data came from. They therefore serve different purposes, although both may appear below the table.
Correct answer: Different