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Biostatistics is an important topic in the Public Health section in CUET PG exam. Practising this topic will increase your score overall and make your conceptual grip on CUET PG exam stronger.
This article gives you a full set of CUET PG PYQs for Biostatistics with explanations for effective preparation. Practice of CUET PG Public Health PYQs including Biostatistics questions regularly will improve accuracy, speed, and confidence in the CUET PG 2026 exam.
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CUET PG PYQs for Biostatistics with Solutions
1.
Random error associated with sampling and randomization are effectively addressed by confidence and hypothesis tests. These methods fail to address systematic errors. Systematic errors come in which of the following forms?
LIST:
A. Confounding bias
B. Information bias
C. Selection bias
D. Direction bias
E. Random bias
- A, C and D only
- A, B and C only
- A, C and E only
- B, C and E only
2.
Choose the correct statements about chi-square probability density function.
LIST:
A. They start at 0.
B. They are Symmetrical.
C. They have a mean equal to their degree of freedom.
D. They have variance equal to degree of freedom.
E. They have variance equal to 2 $\times$ degree of freedom.
- A, C and E only
- A, B and D only
- A, B and C only
- A, C and B only
3.
Four patients are treated with an intervention that is successful 90% of the time. What is the probability of two successes?
- 0.0324
- 0.486
- 0.324
- 0.0486
4.
Some study on human pregnancies were conducted and it is found that, human pregnancies have a gestation period that is approximately normal with $\mu = 39$ weeks and $\sigma = 2$ weeks. What is the z-score for a pregnancy that lasts 36 weeks?
- -1.5
- +1.5
- -1.14
- +1.14
5.
A study of 50 individuals found mean systolic blood pressure $\bar{x} = 124.6$ mm Hg with sample standard deviation $S = 10.3$ mm Hg. Find the no. of individuals needed to reduce the standard error of the mean to 1 mm Hg.- 54
- 51
- 107
- 106
6.
Match the LIST-I with LIST-II
LIST-I LIST-II A. Isolation IV. Separation for the period of communicability of infected persons B. Quarantine II. Limitation of freedom of movements of well person exposed to communicable disease for a period of longest incubation period of the disease to prevent transmission of infection to those not exposed to infection C. Elimination I. Interruption in transmission of disease D. Eradication III. Termination of all transmission of infections by extermination of infectious agents - A-IV, B-II, C-I, D-III
- A-II, B-IV, C-I, D-III
- A-IV, B-II, C-III, D-I
- A-II, B-IV, C-III, D-I
7.
A Screening test has a sensitivity of 0.89 and a false-positive rate of 0.01. The test is used in a population that has a disease prevalence of 0.002. Given a positive result, find the probability of having the disease.
- 14.14%
- 15.14%
- 13.14%
- 12.14%
8.
Fig. shows repeated glucose measurement for a single sample. Choose the correct findings from the following statements.
LIST:
A. Instrument A is precise and unbiased.
B. Instrument B is precise and biased.
C. Instrument B has a positive bias.
D. Instrument C has only positive bias.
E. Instrument C is unbiased.
- B, C and D only
- A, D and E only
- A, B and C only
- B, C, D and E only
9.
Coefficient of correlation (represented by the symbol "r") is calculated:- To find out whether there is a significant association or not between the two variables.
- To find out whether there is a significant relationship or not between the two variables.
- To find out whether there is a significant variability or not between the two variables.
- To find out whether there is a significant matching or not between the two variables.
10.
Measures of variations or dispersion of data are: A. Interquartile Range B. Mode C. Standard Deviation D. Weighted Mean- A and D only
- A and C only
- B and C only
- A and B only
11.
The proportion of frequencies lying on either side of the mean in a normal distribution curve within a range of +1 to -1 standard deviation is approximately:- 95%
- 68%
- 50%
- 75%
12.
Measure of Central Tendency useful in markedly skewed distribution is:- Mean
- Median
- Geometric mean
- Mode
13.
Best sampling method where every unit in the population has an equal chance of being included in the sample is:- Convenience Sampling
- Quota Sampling
- Simple Random Sampling
- Judgemental Sampling
14.
Match List-I with List-II
LIST-I LIST-II A. Bhore III. All India Health Service on the pattern of IAS B. Mudaliar I. Primary Health Units with 75 bedded hospitals for 10-20000 population C. Chadah IV. One Primary Health Centre for the population of 50000 D. Kartar Singh II. One basic health worker per 10000 population - A-III, B-I, C-II, D-IV
- A-II, B-I, C-III, D-IV
- A-I, B-III, C-II, D-IV
- A-IV, B-II, C-III, D-I
15.
Pearl Index is defined as:- Number of failures per 100 woman-years of exposure.
- Number of births per 100 woman-years of exposure.
- Number of abortions per 100 woman-years of exposure.
- Number of deaths per 100 woman-years of exposure.
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