1.  The _____ of combinations of n objects taken r at a time is written as n!

a) Number

b) Alphabet

c) Group

d) Class

2. For any class interval, there are_____ class boundaries.  

a) Four

b) Three

c) Two

d) Five

3. Unstructured questionnaire is a list of questions drawn on the _____ on which

information is required.

a) Mind

b) Study

c) Board

d) Surface

4. A _____ shows vertical bars with equal width to represent the values of a variable  in some intervals of time. 

a) Statistics

b) Data

c) Diagram

d) Bar chart

5. The range of a distribution is the _____ between the highest and the lowest

values in a distribution.

a) Change

b) Difference

c) Size

d) Variable

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6. Venn Diagram is used to solve problems involving _____.

a) Set theory

b) Data

c) Chart

d) Diagram

7. _____ is defined as a value between 0 and 1 that shows the likelihood of

occurrence of an event.

a) Set theory

b) Bar chart

c) Probability

d) None of the above

8. Statistics are concerned with numerical ______.

Ans. Data

9. A _____ variable has “interruptions” between the values it can assume.

a) Discrete

b) Concrete

c) Special

d) Perfect

10. _____ are data discretely collected by or on behalf of the person or people who will use the data.

Ans. Primary Data

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11. Another way of solving problems involving _____ geometric distribution is by

using formula

a) Philosopher

b) Hyper

c) Scientist

d) Histogram

12. Binomial tables are used to solve problems involving the probability of _____.

a) Solving

b) Achievement

c) Outcome

d) Success

13. One of the ways of representing a frequency distribution is by means of a

_____.

a) Binomial

b) Data

c) Histogram

d) All of the above

14. An ordered array of data does not sufficiently summarize the data.

TRUE / FALSE

15. if there is no dominant effect of heredity on the sex of a child, male,s and females are equally likely _____.

a) Events

b) Probability

c) Chart

d) Entity

16. Poisson distribution can be used to approximate the binomial distribution

when n number of trials is large and p = probability of success is _____.

a) Big

b) Large

c) Medium

d) Small

17. A Binomial distribution is derived from a process known as a _____ trial.

Ans. Bernoulli

18. A Set is a collection of _____, distinct objects called elements or members of the set.

Ans. Definite

19. For the set theory, the set is written in _____ letter, Set A. After each

element there must be a comma.

a) Small

b) Lower

c) Capital

d) All of the above

20. _____ may be the person, place, and thing on which we observe.

a) Noun

b) Pronoun

c) Verb

d) Entity

21. _____ is of a binomial distribution is given as n p q where n is the number of

trials, p is the probability of success and q=1-p is the probability of a failure.

a) Probability

b) Variance

c) Binomial

d) All of the above

22. Probability of an event is defined as a value between 0 and 1 that shows the likelihood of occurrence of the event.

TRUE / FALSE

23.  The union of two sets A and B is another _____ consisting of all elements either in A or B or both.

Ans. Set 

24. _____ intervals are defined as contiguous, non-overlapping intervals selected

in such a way that they are mutually exclusive and collectively exhaustive.

a) Class

b) Secondary

c) Primary

d) Private

25. _____ is another way of representing frequency distribution graphically.

Ans.Ogive

26. To calculate the median, there is a need to have a _____ definition of the median

a) Statistics

b) Mathematical

c) Perfect

d) None of the above

27. _____ Data is the data that is used by a person or people other than the person or people by whom or for whom the data was collected.

a) Primary

b) Ordinary

c) Secondary

d) Special

28. Population is the _____ number of entities in a study.

a) Smallest

b) Largest

c) Wildest

d) All of the above

29. _____ is concerned with such aggregates as national income, gross

national products, savings, consumption, gross domestic product, etc.

These are macro-statistics and information.

Ans. Macro-economics

30. There are _____ types of questionnaire

a) Four

b) Two

c) Three

d) Five

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31.  Another way of representing frequency distribution graphically is by the means

of a frequency _____.

a) Pentagon

b) Nonagon

c) Polygon

d) Hexagon

32. The values of the Items represented with pie chart are_____ to the area of the sectors that represent them.

Ans.  proportional

33. Another bar chart that shows the total value for a time and the values of

the components that make up the total is the _____ bar chart.

a) Normal

b) Component

c) Pie

d) special

34. statistics as a _____ method which is used for collecting, summarizing, classifying, analyzing, and presenting information in such a way that we can have a thorough understanding of the reality the information represents

a) Special

b) Classified

c) Scientific

d) mathematical

35. The structured questionnaire consists of a list of _____ drawn on the study

being conducted.

Ans. questions

36. The value of the vertical line on the horizontal axis is the _____.

a) Point

b) Mode

c) Line

d) Same

37. For the multiple bar chart, each component of every _____ is presented by a bar whose length corresponds to the value of the component.

a) Week

b) Day

c) Month

d) Year

38. The lower class boundary of a class interval is the mean of the lower class limit of the interval and the _____ limit of the preceding interval.

a) Middle

b) Upper

c) Lower

d) All of the above

39. _____ uses statistics as a tool for collecting data on economic aggregates

such as national income, savings, consumption and gross national product.

a) Students

b) People

c) Marketers

d) Government

40. Sample is the part of the population that is selected for a _____.

a) People

b) Study

c) Pattern

d) Base

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41. Before the interview is conducted, the interviewer must have_____ of his respondents.

a) Wisdom

b) Knowledge

c) Understanding

d) View

42. Statistics can be defined as a ______ tool for making a decision

a) Mathematics

b) Business

c) Management

d) None of the above

43. Examples of a number of female students in the various programs in the National Open University is an example of _____ variable

Ans. Discrete

44. Interviews are used in a number of situations that include the following except

a) Obtaining opinion poll staff

b) Studying why people behave in a way

c) Selecting applicants for some jobs

d) Reporting especially in the radio and television

45.  The _____ mean is used to average ratios, speeds, etc.

a) Geometric

b) Harmonic 

c) Ungrouped

d) Grouped

46. The geometric mean is used mainly in connection with _____ numbers.

a) Whole

b) Main

c) Index

d) Numeric

47. For the grouped data, the relative frequency of a class interval is the frequency

of the interval _____ by the total frequencies of all class intervals.

a) Subtract

b) Divided

c) Add

d) Multiply

48. The interviewer must also secure an initial rapport with his _____.

a) Interview

b) Director

c) Curriculum vitae  

d) Respondents

49. _____ is a variable whose values are given as numerical quantities.

a) Quantitative

b) Random

c) Continuous

d) None of the above

50. The upper class _____ of a class interval is the mean of the upper-class limit of the class interval and the lower-class limit of the succeeding class interval.

ANS. Boundary

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