Free Descriptive Statistics MCQs with Answers

• 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. 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…

• 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.

• 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.

• A. Frequency distribution
• B. Classification
• C. Table
• D. Tabulation

Explanation: Tabulation is the process of arranging data systematically in rows and columns.

• 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.

• 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.

• 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.

• 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…

• 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.

• A. Interval
• B. Histogram
• C. Limits
• D. Marks

Explanation: The class mark is found by adding the lower and upper class limits and dividing by 2: (lower limit + upper limit) / 2.

• A. Raw
• B. Cumulative frequency
• C. Group
• D. Arrangement

Explanation: Unsorted observations are called raw data because they have not yet been arranged or grouped.

• A. Open-end
• B. Distribution
• C. Componemt
• D. Unequal

Explanation: When the widths of class intervals differ, the distribution is described as having unequal class intervals.

• A. (n2 + 1)
• B. (2n + 1)2
• C. (n + 1)2
• D. (N - 1)2

Explanation: For 2n + 1 ordered observations, the middle observation is in position (2n + 2)/2 = n + 1.

• A. Uni-modal
• B. Bi-model
• C. Tri-modal
• D. None of these

Explanation: A distribution with exactly two modes is called bimodal, because two values occur with the greatest frequency.

• A. Median
• B. Quartiles
• C. Mode
• D. Deciles

Explanation: The mode is the observation with the highest frequency, so it is the frequent value when such a value exists.

• A. A.M.
• B. G.M.
• C. H.M.
• D. Mode

Explanation: The arithmetic, geometric, and harmonic means use every observation in their calculations.

• A. A.M.
• B. G.M.
• C. Mode
• D. None of these

Explanation: The geometric mean is the nth root of the product of all observations, so any zero makes that product zero and the geometric mean zero.

• A. Mean
• B. Median
• C. Mode
• D. None of these

Explanation: Deviations from the arithmetic mean balance exactly: positive and negative deviations sum to zero.

• A. A.M.
• B. Mode
• C. H.M.
• D. G.M.

Explanation: The usual real-valued geometric mean is defined for non-negative observations, so a negative value makes it unavailable under the standard…