STATISTICS-PAGE 8
STATISTICS MCQ- PAGE 8
1. The geometric mean in the data set having a negative observation, will have the following value
(A) Negative
(B) Positive
(C)Zero
(D) Cannot be calculated
Ans: D
2. What is/are the modal value/s of the following data?
45, 55, 50,45,40,55,
(A) 40 and 45
(B) 45 and 55
(C) 45 only
(D) 55only
Ans: B
3. A measure while divides an array ofdata into four equal parts is known as
(A) Halves
(B) Quartile
(C) Decile
(D) Percentile
Ans: B
4. In a series of individual observations, if the total number of items is an odd figure, then the value ofthe middle item is -----value
(A) Mean
(B) Mode
(C) Median
(D) Average
Ans: C
5. The figure obtained by dividing the total value of the various items by their number is ----- of a series.
(A) Arithmetic average
(B) Geometric average
(C) Harmonic average
(D) Quadratic average
Ans: A
6. 'Moving Average' is one type of
(A) Mathematical Averages
(B) Averages of Location
(C) Averages of Position
(D) Commercial Average
Ans: D
7. To reduce the complexity of data and to make them comparable, which type of measure is a necessary one?
(A) Skewness (B) Kurtosis (C) Dispersion (D) Central tendency
Ans: D
8. The reciprocal of the arithmetic average of the reciprocal of values of various items in the variable is termed as
(A) Geometric mean (B) Harmonic mean
(C) Arithmetic mean (D) Quadratic mean
Ans: B
9. Lottery method is a
(A) Simple random sampling
(B) Stratified random sampling
(C) Systematic random sampling
(D) Cluster sampling
Ans: A
10. The median of the following data:
15,6, 16,8, 22, 21, 9, 18,25
(A) 22
(B) 16
(C) 15
(D) 18
Ans: B
11. ‘Marching from exposure towards outcome’ is also called
(A) case report studies (B) cross sectional (C) case control studies (D) cohort
Ans: D
12. A trial done under near ideal conditions with practically no deviation is called as
(A) Pragmatic trial (B) Explanatory trial (C) Exploratory study (D) All of the above
Ans: B
13. For which of the following sampling ‘design effect’ is used
(A) Simple random (B) Cluster random (C) Systematic random (D) Stratified random
Ans: B
14. Which study is adopted to study that how good is a test or a procedure in predicting a disease or any other outcome
(A) Case control study (B) Cross sectional study (C) Prospective study (D) None of the above
Ans: C
15. P-value refers to probability of
(A) Type I error (B) Type 3 error (C) Both A and B (D) None of the above
Ans: A
16. Ability to repeat the performance is called as
(A) Validity (B) Reliability (C) Accuracy (D) All of the above
Ans: B
17. Pearson’s correlation coefficient ranges from
(A) 0 - 1 (B) –1 to +1 (C) 1 - 2 (D) None of the above
Ans: B
18. Descriptive studies can be used to
(A) Generate hypothesis (B) Test hypothesis (C) Study relationships (D) All of the above
Ans: D
19. Which of the following phases of clinical trial is known as ‘dose escalation trial’
(A) 1 (B) 2 (C) 3 (D) 4
Ans: A
20. Study most suitable to know whether two or more factors are related to one another at a particular point of time
(A) Cohort study (B) Case control study (C) Cross sectional study (D) Prospective study
Ans: C
21. Best way to plot change of incidence of disease over time is
(A) Histogram (B) Line diagram (C) Scatter diagram (D) Ogive
Ans: B
22. Measures of dispersion are all except
(A) Mean deviation (B) Standard deviation (C) Correlation and regression (D) Range
Ans: C
23. Median is the measure of ....
(A) Variability (B) Central Tendency (C) Disperson (D) None of the above
Ans: B
24. In referance to publication, evaluation of work by one or more people of similar competence to the producer of work is called ....
(A) Examination (B) Peer-review (C) Viva-voce (D) None of the above
Ans: B
25. Cohart study is ....
(A) Randomized control clinical trial (B) Case control study (C) Range study (D) Average study
Ans: B
26. The set of values recorded as one or more observational unit may be called as ....
(A) Data (B) Result (C) Numbers (D) Variable
Ans: A
27. FINER criteria is for ....
(A) Subject related to research (B) Test of significance (C) Data collection methodology (D) Ethical committee
Ans: A
28:-In Correlation, the shape of the curve is
A:-Skewed towards right side B:-Skewed towards left side C:-Both of the above D:-Dumbbell shaped Ans: D
29:-Mean<Median in
A:-Positively skewed distribution
B:-Negatively skewed distribution
C:-Standard normal distribution
D:-None of the above
Ans: B
30:-In a standard normal distribution, Mean :3 Standard Deviation which covers about 99% of data, the Z-score is taken as
A:-1 B:-2 C:-2.5 D:-3.5
Ans: C
31:-Which among the following is NOT a feature of parametric tests
A:-Distribution is assumed to be normal B:-Data is in Interval scale or Ratio scale
C:-Data set relationships are independent in nature D:-The correlation test used in Spearman's correlation
Ans: D
32:-Sensitivity of a biochemical test is
A:-The closeness with which measured values agree with true value
B:-The ability to identify correctly all those who have the disease
C:-The ability to identify correctly all those who do not have the disease
D:-Both A and B
Ans: B
33:-Reliability and repeatability can be measured by
A:-Correlation B:-Regression C:-Both of the above D:-None of the above
Ans: A
34:-Which among the following is used to represent continuous type of quantitative data
A:-Bar diagram B:-Pie diagram C:-Histogram D:-Spot map
Ans: C
35:-Z-test is used to compare the means of two groups when
A:-The data sets in the groups are related to each other and the sample is small
B:-The data sets in the groups are related to each other and the sample is large
C:-The date sets in the groups are not related to each other
D:-Both A & B
Ans: B
36:-Which among the following is NOT an application of Chi-square test in statistics
A:-Test of proportion B:-Test of association C:-Test of goodness of fit D:-None of the above
Ans: D
37:-Which among the following study designs give the underlying cause (why and how)
A:-Descriptive study B:-Ana|ytica| study
C:-Randomized Controlled Trial D:-Non-Randomized Controlled Trial
Ans: B
38:-Which among the following is an uncontrolled characteristic of a study
A:-|ndependent Variable B:-Dependent Variable C:-Discrete Variable D:-Continuous Variable
Ans: B
39:-Which among the following statements is NOT applicable to probability sampling method
A:-Every member of the population has an equal chance of being included in the sample
B:-The chances of members of the population being selected for the sample are known
C:-Sampling error can be calculated
D:-Sampling error remains unknown
Ans: D
40:-Systematic sampling is NOT used when the population is
A:-Large B:-Scattered C:-Homogenous D:-Non-Homogenous
Ans: C
41:-Absolute zero and meaningful ratio of scores exist in
A:-Nominal scale B:-Ordinal scale C:-Interval scale D:-Ratio scale
Ans: D
42:-Pygmalion effect is another name for
A:-Selection bias B:-Memory or recall bias C:-Interviewer's bias D:-Berkesonian bias
Ans: C
43:-Relative risk, attributable risk and incidence rate can be calculated in
A:-Case control study B:-Cohort study C:-Retrospective study D:-Descriptive study
Ans: B
44:-The best measure of central tendency which can be used for a skewly distributed data is
A:-Mean B:-Median C:-Inter-quarti|e range D:-Standard deviation
Ans: B
(A) Negative
(B) Positive
(C)Zero
(D) Cannot be calculated
Ans: D
2. What is/are the modal value/s of the following data?
45, 55, 50,45,40,55,
(A) 40 and 45
(B) 45 and 55
(C) 45 only
(D) 55only
Ans: B
3. A measure while divides an array ofdata into four equal parts is known as
(A) Halves
(B) Quartile
(C) Decile
(D) Percentile
Ans: B
4. In a series of individual observations, if the total number of items is an odd figure, then the value ofthe middle item is -----value
(A) Mean
(B) Mode
(C) Median
(D) Average
Ans: C
5. The figure obtained by dividing the total value of the various items by their number is ----- of a series.
(A) Arithmetic average
(B) Geometric average
(C) Harmonic average
(D) Quadratic average
Ans: A
6. 'Moving Average' is one type of
(A) Mathematical Averages
(B) Averages of Location
(C) Averages of Position
(D) Commercial Average
Ans: D
7. To reduce the complexity of data and to make them comparable, which type of measure is a necessary one?
(A) Skewness (B) Kurtosis (C) Dispersion (D) Central tendency
Ans: D
8. The reciprocal of the arithmetic average of the reciprocal of values of various items in the variable is termed as
(A) Geometric mean (B) Harmonic mean
(C) Arithmetic mean (D) Quadratic mean
Ans: B
9. Lottery method is a
(A) Simple random sampling
(B) Stratified random sampling
(C) Systematic random sampling
(D) Cluster sampling
Ans: A
10. The median of the following data:
15,6, 16,8, 22, 21, 9, 18,25
(A) 22
(B) 16
(C) 15
(D) 18
Ans: B
11. ‘Marching from exposure towards outcome’ is also called
(A) case report studies (B) cross sectional (C) case control studies (D) cohort
Ans: D
12. A trial done under near ideal conditions with practically no deviation is called as
(A) Pragmatic trial (B) Explanatory trial (C) Exploratory study (D) All of the above
Ans: B
13. For which of the following sampling ‘design effect’ is used
(A) Simple random (B) Cluster random (C) Systematic random (D) Stratified random
Ans: B
14. Which study is adopted to study that how good is a test or a procedure in predicting a disease or any other outcome
(A) Case control study (B) Cross sectional study (C) Prospective study (D) None of the above
Ans: C
15. P-value refers to probability of
(A) Type I error (B) Type 3 error (C) Both A and B (D) None of the above
Ans: A
16. Ability to repeat the performance is called as
(A) Validity (B) Reliability (C) Accuracy (D) All of the above
Ans: B
17. Pearson’s correlation coefficient ranges from
(A) 0 - 1 (B) –1 to +1 (C) 1 - 2 (D) None of the above
Ans: B
18. Descriptive studies can be used to
(A) Generate hypothesis (B) Test hypothesis (C) Study relationships (D) All of the above
Ans: D
19. Which of the following phases of clinical trial is known as ‘dose escalation trial’
(A) 1 (B) 2 (C) 3 (D) 4
Ans: A
20. Study most suitable to know whether two or more factors are related to one another at a particular point of time
(A) Cohort study (B) Case control study (C) Cross sectional study (D) Prospective study
Ans: C
21. Best way to plot change of incidence of disease over time is
(A) Histogram (B) Line diagram (C) Scatter diagram (D) Ogive
Ans: B
22. Measures of dispersion are all except
(A) Mean deviation (B) Standard deviation (C) Correlation and regression (D) Range
Ans: C
23. Median is the measure of ....
(A) Variability (B) Central Tendency (C) Disperson (D) None of the above
Ans: B
24. In referance to publication, evaluation of work by one or more people of similar competence to the producer of work is called ....
(A) Examination (B) Peer-review (C) Viva-voce (D) None of the above
Ans: B
25. Cohart study is ....
(A) Randomized control clinical trial (B) Case control study (C) Range study (D) Average study
Ans: B
26. The set of values recorded as one or more observational unit may be called as ....
(A) Data (B) Result (C) Numbers (D) Variable
Ans: A
27. FINER criteria is for ....
(A) Subject related to research (B) Test of significance (C) Data collection methodology (D) Ethical committee
Ans: A
28:-In Correlation, the shape of the curve is
A:-Skewed towards right side B:-Skewed towards left side C:-Both of the above D:-Dumbbell shaped Ans: D
29:-Mean<Median in
A:-Positively skewed distribution
B:-Negatively skewed distribution
C:-Standard normal distribution
D:-None of the above
Ans: B
30:-In a standard normal distribution, Mean :3 Standard Deviation which covers about 99% of data, the Z-score is taken as
A:-1 B:-2 C:-2.5 D:-3.5
Ans: C
31:-Which among the following is NOT a feature of parametric tests
A:-Distribution is assumed to be normal B:-Data is in Interval scale or Ratio scale
C:-Data set relationships are independent in nature D:-The correlation test used in Spearman's correlation
Ans: D
32:-Sensitivity of a biochemical test is
A:-The closeness with which measured values agree with true value
B:-The ability to identify correctly all those who have the disease
C:-The ability to identify correctly all those who do not have the disease
D:-Both A and B
Ans: B
33:-Reliability and repeatability can be measured by
A:-Correlation B:-Regression C:-Both of the above D:-None of the above
Ans: A
34:-Which among the following is used to represent continuous type of quantitative data
A:-Bar diagram B:-Pie diagram C:-Histogram D:-Spot map
Ans: C
35:-Z-test is used to compare the means of two groups when
A:-The data sets in the groups are related to each other and the sample is small
B:-The data sets in the groups are related to each other and the sample is large
C:-The date sets in the groups are not related to each other
D:-Both A & B
Ans: B
36:-Which among the following is NOT an application of Chi-square test in statistics
A:-Test of proportion B:-Test of association C:-Test of goodness of fit D:-None of the above
Ans: D
37:-Which among the following study designs give the underlying cause (why and how)
A:-Descriptive study B:-Ana|ytica| study
C:-Randomized Controlled Trial D:-Non-Randomized Controlled Trial
Ans: B
38:-Which among the following is an uncontrolled characteristic of a study
A:-|ndependent Variable B:-Dependent Variable C:-Discrete Variable D:-Continuous Variable
Ans: B
39:-Which among the following statements is NOT applicable to probability sampling method
A:-Every member of the population has an equal chance of being included in the sample
B:-The chances of members of the population being selected for the sample are known
C:-Sampling error can be calculated
D:-Sampling error remains unknown
Ans: D
40:-Systematic sampling is NOT used when the population is
A:-Large B:-Scattered C:-Homogenous D:-Non-Homogenous
Ans: C
41:-Absolute zero and meaningful ratio of scores exist in
A:-Nominal scale B:-Ordinal scale C:-Interval scale D:-Ratio scale
Ans: D
42:-Pygmalion effect is another name for
A:-Selection bias B:-Memory or recall bias C:-Interviewer's bias D:-Berkesonian bias
Ans: C
43:-Relative risk, attributable risk and incidence rate can be calculated in
A:-Case control study B:-Cohort study C:-Retrospective study D:-Descriptive study
Ans: B
44:-The best measure of central tendency which can be used for a skewly distributed data is
A:-Mean B:-Median C:-Inter-quarti|e range D:-Standard deviation
Ans: B