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.
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238 questions · page 21 of 24
201. Statistics laws are true for______________?
- A. Short run
- B. Long run
- C. Medium period
- D. None of these
Explanation: Statistical laws describe regularities that emerge from a large number of observations, not necessarily from one short series. Therefore they are regarded as valid in the long run.
Correct answer: Long run202. Statistical Laws are valid in the ________________?
- A. Long run
- B. Plural sense
- C. indefinite
- D. Short run
Explanation: Statistical regularities become dependable when repeated observations are considered over a long period or large number of trials. Short-run results may show substantial random variation.
Correct answer: Long run203. A characteristics that does not change is called______________?
- A. variable
- B. Attribute
- C. Constant
- D. None of these
Explanation: A characteristic that remains fixed and does not vary is called a constant. A variable, by contrast, can take different values among observations.
Correct answer: Constant204. _________ used the word statistics for the first time during one of his lectures at a German university?
- A. Fisher
- B. unavoidable
- C. Feet
- D. Achenwall
Explanation: Gottfried Achenwall is generally credited with first using the term “statistics” in the eighteenth century during lectures at a German university. The other listed choices are unrelated or incomplete.
Correct answer: Achenwall205. _________ statistics deals with collection, presentation and analysis of data?
- A. Inferential
- B. Descriptive
- C. Collection
- D. Two
Explanation: Descriptive statistics summarises data through collection, organisation, presentation, and analysis without drawing broader population conclusions. Inferential statistics is concerned with generalising from a sample to a population.
Correct answer: Descriptive206. Most of the recent developments in statistics arose to meet the needs of ____________?
- A. Biology
- B. Three reasons
- C. Hands
- D. Physics
Explanation: Many modern statistical techniques developed in response to practical problems in biology, especially variation, heredity, and population studies. Among the given options, biology is the relevant field.
Correct answer: Biology207. Statistics Laws are true________________?
- A. In each case
- B. Average
- C. Facts
- D. Field
Explanation: Statistical laws usually describe regularities for groups and are therefore true on average, not necessarily for every individual case. This distinguishes them from exact universal laws.
Correct answer: Average208. A Constant can assume _______ value?
- A. One
- B. Four
- C. More than value
- D. Resindent
Explanation: A constant has one fixed value throughout the situation being studied. A quantity that can assume different values is a variable.
Correct answer: One209. ___________ data are collected for the first time.
- A. Research
- B. Statistical
- C. Secondary
- D. Primary
Explanation: Primary data are collected firsthand by the investigator for the specific study, such as through surveys or experiments. Secondary data have already been collected by someone else.
Correct answer: Primary210. Proportion becomes percentage when multiplied by___________?
- A. 1/10
- B. 1/1000
- C. 1/100
- D. 100
Explanation: A proportion is expressed as a percentage by multiplying it by 100, since percentage means “per hundred.” For example, 0.35 becomes 35%.
Correct answer: 100