## Biostatistics Questions Bank with Answers pdf | Biostatistics pdf | Fundamentals of Biostatistics Solutions Manual

**1. Why the data is classified?**

(a) To discriminate is similar and dissimilar data

(b) For amusement

(c) Both (a) and (b)

(d) None of the above

Ans. a

**2. Which of the following measures the central tendency?**

(a) Mean

(b) Median

(c) Mode

(d) All of these

Ans. d

**3. Which of the following is not a part of central tendency?**

(a) Mean

(b) Median

(c) Integration

(d) None of these

Ans. c

**4. Frequency distribution was**

(a) grouping the data

(b) class size

(c) upper and lower limit

(d) All of these

Ans. d

**5. The sum of the values of all the observation divided b total number of observation is **

(a) mean

(b) median

(c) mode

(d) All of these

Ans. a

**6. Mean is denoted by**

(a) x2

(b) x-

(c) Both (a) and (b)

(d) None of these

Ans. b

**7. The value of the given number which divides it exactly tw parts is **

(a) mean

(b) median

(c) mode

(d) None of these

Ans. b

### Fundamentals of Biostatistics pdf | Biostatistics Questions and Answers pdf | Biostatistics Book pdf | Basic Biostatistics pdf

**8. When the number of observation is odd the median is the value of which observation? th**

(a) (n+1/2)th

(b) (n/2)th

(c) (n-1/2)th

(d) (n+2/2)th

Ans. a

**9. When the number of observation is even, the median is the value of which observation?**

(a) (n-1/2)

(b) Mean of (n/2)th and (n+1/2)th

(c) (n-1/2)

(d) (n+2/2)th

Ans. b

**10. Mode is that value of observation which occurs most**

(a) rarely

(b) average

(c) frequently

(d) None of these

Ans. c

**11. In the formula of mode of grouped data l+(fi-fo/2f1-f0-f2)h,h is**

(a) lower limit

(b) frequency of modal class

(c) size of class interval

(d) None of these

Ans. c

**12. 3 Median = Mode +… Mean**

(a) 1

(b) 3

(c) 2

(d) 4

Ans. c

**13. Which one is easier to compute?**

(a) Relative measures of dispersion

(b) Absolute measures of dispersion

(c) Both (a) and (b)

(d) Range

Ans. d

**14. The absolute measure of dispersion is**

(a) range

(b) mean deviation

(c) standard deviation

(d) All of these

Ans. d

### Principles of biostatistics pdf | Biostatistics exam questions and answers pdf | Introduction to biostatistics pdf | Biostatistics multiple choice questions and answers | Biostatistics lecture notes | Medical biostatistics pdf | Methods in biostatistics pdf | Biostatistics notes pdf | Study guide for fundamentals of biostatistics pdf | Biostatistics exam questions and answers

**15. Most commonly used measure of dispersion is**

(a) coefficient of variation

(b) range

(c) quartile deviation

(d) standard deviation

Ans. d

**16. The range of 15, 12, 10, 9, 17, 20 is**

(a) 5

(b) 12

(c) 13

(d) 11

Ans. d

**17. For any two numbers SD is always**

(a) twice the range

(b) half of the range

(c) square of the range

(d) None of these

Ans. b

**18. If all the observations are multiplied by 2, then**

(a) new SD would be also multiplied by 2

(b) new SD would be half of the previous SD

(c) new SD would be increased by 2

(d) new SD would be decreased by 2

Ans. a

**19. Ratio of mean deviation to its arithmetic mean or median multiplied by 100 is**

(a) coefficient of mean deviation

(b) coefficient of standard deviation

(c) coefficient of variance

(d) None of the above

Ans. a

**20. Standard deviation of 10, 16, 10, 16, 10, 10, 16, 16 is **

(a) 4

(b) 6

(c) 3

(d) 0

Ans. c

**21. Which data provides the detailed information?**

(a) Primary data

(b) Secondary data

(c) Both (a) and (b)

(d) None of the above

Ans. a

**22. Representation of data in the pure of a circular graph is**

(a) histogram

(b) pictogram

(c) Pie-chart

(d) frequency polygon

Ans. c