CUET PG PYQs for Biostatistics with Solutions: Practice CUET PG Previous Year Questions

Content Writer | Journalism Graduate | Updated 3+ months ago

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.

CUET PG PYQs for Biostatistics with Solutions

1.
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
View Solution
2.
Calculate the Harmonic Mean of the following data:
10 \quad 20 \quad 40 \quad 60 \quad 120
- 25
- 27.5
- 32.5
- 50
View Solution
3.
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
View Solution
4.
Which statistical test is most appropriate for comparing the mean hemoglobin levels between two independent groups?
- Paired t-test
- Chi-square test
- Independent t-test
- ANOVA
View Solution
5.
The WBC count of a group of athletes in a team was estimated to be 7900, 9000, 7800, 8300, 2900, 4545, 5100, 3700, 9900 and 4545 per mm3 of blood. Calculate the median WBC count of this group of individuals.
- 2900 per mm$^3$
- 4545 per mm$^3$
- 6369 per mm$^3$
- 6450 per mm$^3$
View Solution
6.
How is the mean deviation calculated for a given dataset?
- Adding all the values of the given dataset.
- Dividing the sum of all the values of the given dataset by the number of observations in the dataset.
- Dividing the sum of all the deviations from the mean by the number of observations in the dataset.
- Dividing the sum of squares of all the deviations from mean by the number of observations in the dataset.
View Solution
7.
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
View Solution
8.
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%
View Solution
9.
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%
View Solution
10.
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
View Solution
11.
The number of fish caught each day by a fisherman for 10 consecutive days was reported to be 62, 58, 56, 57, 62, 59, 62, 57, 64, 63. What is the standard deviation of this dataset?
- 2.9
- 8.44
- 3.60
- 76
View Solution
12.
Which of the following statements is not applicable to the mode of a dataset?
- There can be more than one mode for a particular dataset.
- It is affected by extreme values in the dataset.
- It represents the most frequently occurring value of the dataset.
- It is calculated by inspection method and grouping method.
View Solution
13.
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
View Solution
14.
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
View Solution
15.
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
View Solution

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CUET PG PYQs for Biostatistics with Solutions: Practice CUET PG Previous Year Questions

CUET PG PYQs for Biostatistics with Solutions

1.
Four patients are treated with an intervention that is successful 90% of the time. What is the probability of two successes?

2.
Calculate the Harmonic Mean of the following data:
10 \quad 20 \quad 40 \quad 60 \quad 120

3.
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?

4.
Which statistical test is most appropriate for comparing the mean hemoglobin levels between two independent groups?

5.
The WBC count of a group of athletes in a team was estimated to be 7900, 9000, 7800, 8300, 2900, 4545, 5100, 3700, 9900 and 4545 per mm3 of blood. Calculate the median WBC count of this group of individuals.

6.
How is the mean deviation calculated for a given dataset?

7.
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.

8.
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.

9.
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:

11.
The number of fish caught each day by a fisherman for 10 consecutive days was reported to be 62, 58, 56, 57, 62, 59, 62, 57, 64, 63. What is the standard deviation of this dataset?

12.
Which of the following statements is not applicable to the mode of a dataset?

13.
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.

14.
Best sampling method where every unit in the population has an equal chance of being included in the sample is:

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CUET PG PYQs for Biostatistics with Solutions

1.Four patients are treated with an intervention that is successful 90% of the time. What is the probability of two successes?

2.Calculate the Harmonic Mean of the following data: 10 \quad 20 \quad 40 \quad 60 \quad 120

3.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?

4.Which statistical test is most appropriate for comparing the mean hemoglobin levels between two independent groups?

5.The WBC count of a group of athletes in a team was estimated to be 7900, 9000, 7800, 8300, 2900, 4545, 5100, 3700, 9900 and 4545 per mm3 of blood. Calculate the median WBC count of this group of individuals.

6.How is the mean deviation calculated for a given dataset?

7.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.

8.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.

9.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:

11.The number of fish caught each day by a fisherman for 10 consecutive days was reported to be 62, 58, 56, 57, 62, 59, 62, 57, 64, 63. What is the standard deviation of this dataset?

12.Which of the following statements is not applicable to the mode of a dataset?

13.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.

14.Best sampling method where every unit in the population has an equal chance of being included in the sample is:

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1.
Four patients are treated with an intervention that is successful 90% of the time. What is the probability of two successes?

2.
Calculate the Harmonic Mean of the following data:
10 \quad 20 \quad 40 \quad 60 \quad 120

3.
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?

4.
Which statistical test is most appropriate for comparing the mean hemoglobin levels between two independent groups?

5.
The WBC count of a group of athletes in a team was estimated to be 7900, 9000, 7800, 8300, 2900, 4545, 5100, 3700, 9900 and 4545 per mm3 of blood. Calculate the median WBC count of this group of individuals.

6.
How is the mean deviation calculated for a given dataset?

7.
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.

8.
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.

9.
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:

11.
The number of fish caught each day by a fisherman for 10 consecutive days was reported to be 62, 58, 56, 57, 62, 59, 62, 57, 64, 63. What is the standard deviation of this dataset?

12.
Which of the following statements is not applicable to the mode of a dataset?

13.
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.

14.
Best sampling method where every unit in the population has an equal chance of being included in the sample is: