All Free Statistics MCQs with Answers

• A. variable
• B. Constant
• C. Discrete variable
• D. Continuous variable

Explanation: Road accidents are counted in whole numbers such as 0, 1, or 2, so their number is a discrete variable. A continuous variable can take any value within an interval, such as height or temperature.

• A. Constant
• B. Variable
• C. Quantitative data
• D. Qualitative data

Explanation: Traditional statistical methods are mainly designed for quantitative data, so statistics has difficulty handling purely qualitative characteristics unless they are converted into categories or numerical codes. The other options do not describe this limitation.

• A. variable
• B. Constant
• C. Primary data
• D. Secondary data

Explanation: When a Patwari directly collects information about cotton crops for the purpose of the study, the information is primary data. Data taken from an existing report or record would instead be secondary data.

• A. Official data
• B. un-official data
• C. Primary data
• D. Secondary data

Explanation: NADRA collects applicants' information directly while issuing identity cards, so it is primary data for that collection process. Although it is also official data, the question's intended classification is by how the data were obtained.

• A. Primary source
• B. secondary source
• C. Organized data
• D. none

Explanation: When census reports are used by someone as an existing source, they are secondary data because the user did not collect them firsthand for the current study. The original census organization may have collected the data as primary data.

• A. Has no role
• B. Average
• C. Plays an Important role
• D. Study

Explanation: Statistics plays an important role in natural sciences by summarizing observations, quantifying variation, and helping researchers draw conclusions from experiments. It is therefore not limited to social or economic studies.

• A. Other sciences
• B. physics
• C. Business
• D. Literary subjects

Explanation: Statistics helps test and verify laws or relationships proposed in other sciences by comparing them with observed numerical data. Physics is only one science among many, so the broader option is appropriate.

• A. Useless
• B. Various Methods
• C. Unavoidable
• D. Samples

Explanation: Planning depends on data about current conditions, trends, resources, and likely outcomes, so statistical use is unavoidable. “Various methods” describes how statistics may be used, not whether it is necessary.

• A. Economics
• B. Mathematics
• C. Research
• D. Computer

Explanation: Research relies on statistics to collect, organise, analyse, and interpret evidence, which is why statistics is commonly called its backbone. Economics and computer science use statistics, but research is the broader intended answer.

• A. Singular Sense
• B. Plural Sense
• C. Singular as well as plural sense
• D. Non of these

Explanation: “Statistics” has a plural sense when it means numerical facts, and a singular sense when it means the discipline or method of analysing data. Therefore, both singular and plural uses are correct.