A survey was conducted by nursing students to investigate the current nursing profession situation in Pakistan. Variables collected included gender, education level, ethnicity, location, age, marital status, and employment status. Questions 4-6 relate to displaying marital status (married, unmarried, divorced) using a pie chart, education level being nominal data, and age data best displayed using a histogram or bar chart.

1. Guess paper bio
1. A subset of all the measurement of interest is
a. Population
b. Sample
c. Sampling unit
d. None/***
2. All of the following are example of qualitative data except:
a. Age
b. Sex
c. Education level
d. Socioeconomic status
3. Following are the example of quantitative data except :
a. Height
b. Weight
c. Temperature.
d. Gender
Scenario:
A survey was conducted by 2nd year BScN students to investigate the current situation of
nursing profession in Pakistan. Some of the variables were gender, level of education,
ethnicity, and place of domicile, age, marital status and employment status.
Q no 4-6 are related to above scenario.
4. The appropriate graph to display marital status married, unmarried ,divorced is :
a. Frequency polygon
b. Scatter plot
c. Pie chart
d. Histogram
5. The level of education is :
a. Nominal data
b. Ordinal data
c. Discrete data
d. None of the above
6. The best way to display age data is to draw
a. Histogram
b. Bar Chart
c. Both a & b
d. None
7. Mean as the measure of central tendency can be calculated for all of the following except:
a. Blood Pressure
b. Age
c. Weight
d. Marital status
8. Which one is true for empirical rule :
a. µ ± 1SD= 60%
b. µ ± 1SD= 70%
c. µ ± 1SD= 65%
d. µ ± 1SD= 68%
9. Following are true for mean except :
a. Applicable for continues data
b. Not applicable for qualitative data
c. Affected by each value in data set
d. Do not effected by extreme value
10. The most frequently occurring observation is :

2. Guess paper bio
a. Mean
b. Mode
c. Median
d. Standard deviation
11. When the distribution of data is skewed one should ideally used:
a. Mean
b. Mode
c. Median
d. Standard deviation
12. All of the following are true for the measure of dispersion except:
a. Mean
b. Range
c. Interqantrile range
d. Variance
13. Sample standard deviation is represented by symbol :
a. S
b. S2
c. X
d. Ω
14. Z score is calculated for :
a. Standard normal distribution
b. Chi Square test
c. T. distribution
d. Normal distribution
15. Normal distribution curve the mean of the data lie in
a. Right end
b. Left end
c. Centre
d. None
16. Parameter of standard normal distribution are
a. Mean
b. Standard deviation
c. Range
d. Both a &b
17. All are the following are true for standard normal distribution except:
a. Mean =50
b. Z score
c. Total curve =1
d. Negative Z between mean
18. When mean median mode lie in the center of the curve the distribution is known as :
a. Normal
b. Right Skewed
c. Left Skewed
d. Chi square
19. What is the relationship between standard deviation and variance:
a. Variance =√ 𝑠𝑡𝑎𝑛𝑑𝑎𝑟𝑑 𝑑𝑒𝑎𝑣𝑖𝑎𝑡𝑖𝑜𝑛
b. Variance = standard deviation/n
c. Variance = standard deviation2
d. None of the above
20. 1st step in calculating median is :
a. Calculate range
b. Arrange data
c. Count the data
d. None of the above

3. Guess paper bio
21. What is true for descriptive statistics :
a. Organization and displaying of data
b. Drawing inferences for population
c. Hypothesis testing
d. Calculating P value
22. Positive Z score shows that :
a. Observation is below mean
b. Observation is above mean
c. The observation is = mean
d. None
23. In the percentile the whole area under the curve is divided into:
a. 10 equal parts
b. 50 equal parts
c. 100 equal parts
d. None of the above
24. Percentile represent :
a. A position in a given distribution
b. A percentage
c. Both a & b
d. None of the above
25. The best way to display Age data is to draw;
a. Histogram
b. Bar chart
c. Both a & b
d. None of these
26. What is true for descriptive statistics;
a. Organization & displaying of data
b. Drawing inferences for population
c. Hypothesis testing
d. Calculation p-value
27. A portion of the population selected for study is referred to as:
a. a sample
b. parameter
c. Hypothesis.
d. Random variable.
28. First step in calculating median is;
a. Calculate range
b. Arrange data
c. Count the data
d. None of these
29. Classification of objects or persons into classes or groups in such a way that only one object or
person falls in only one group at a time is called as;
a. Mutually exclusive
b. None Mutually exclusive
c. Dependent
d. Independent
30. The mean of the square deviation about mean is known as;
a. Mean
b. Median
c. Variance
d. Standard deviation

4. BIOSTATISTICS 4
31. In normal distribution curve, mean of the data lie on the
a. Right end
b. Centre
c. Left end
d. None of these
32. When two dice and a single coin are tossed together then total sample spaces will be;
a. 36
b. 14
c. 24
d. 72
33. The sum of the absolute deviation about mean is always:
a. Positive.
b. Negative
c. Zero and negative both at a time
d. Zero
34. For a group data the class interval having maximum frequency is known as
a. Median class
b. Mode
c. Median
d. Model class
35. Chi-square test is always used to test;
a. Population mean
b. Population median
c. Test ofassociation
d. None of these
36. The sample mean x is known as the point estimator of the population;
a. Median
b. Mode
c. Variance
d. Mean µ
37. Estimation is the process of estimating parameters on the basis of;
a. Parameters
b. Statistics
c. A and B
d. None of the above
38. A type of qualitative data where zero is not fixed (arbitrary) termed as;
a. Discrete
b. Continuous
c. Ratio
d. Interval
39. Level of education is;
a. Nominal data
b. Ordinal data
c. Discrete data
d. None of these
40. Skewness is a measure:
a. of the asymmetry ofthe probability distribution
b. which decides whether the distribution may have high or low variance
c. of centraltendency

5. BIOSTATISTICS 5
d. None of the above
41. When explaining the direction of the linear association between two numerical paired variables, a
positive correlation is stated when:
a. One variable increases and the other variable decreases or vice versa.
b. dependent variable increases and independent variable decreases
c. Both variables increase and decrease at the same time.
d. Correlation coefficient is stated close to 0.
42. The null hypothesis is:
a. The assumption that there is a relationship or difference between the variables you are
testing.
b. The pattern between the variables you are testing.
c. The assumption there is no relationship or difference between the variables you are
testing.
d. The assumption that a significant result is unlikely
43. Following all are true for mean EXCEPT;
a. Applicable for continuous data
b. Not applicable for qualitative data
c. Do not affect by extraneous values
d. Affected by each value in data set
44. The null hypothesis is:
a. The assumption that a significant result is unlikely.
b. The pattern between the variables you are testing.
c. assumption that there is a relationship or difference between the variables you are
testing
d. Assumption there is no relationship or difference between the variables you are testing.
45. How can p<.05 be interpreted?
a. There is a 5% chance of you making a type one error.
b. There is a less than 1 in 20 probability of the result occurring by chance alone if the null
hypothesis were true.
c. Probability of obtaining the data if the null hypothesis were true is less than 5%.
d. All of the above.
46. Which statement about normal distribution is FALSE:
a. 50 percent ofthe observations fall within one standard deviation sigma ofthe mean.
b. 68 percent of the observations fall within one standard deviation sigma of the mean.
c. 95 percent of observation falls within 2 standard deviations.
d. 99.7 percent of observations fall within 3 standard deviations of the mean.
47. Normal curve represents distribution where ____,____,and____ are equalto each other.
a. range / standard deviation / variance
b. mean / median / standard deviation
c. mode/ median / standard deviation
d. mean / median / mode
48. What percentage of scores will fall between –3 and +3 standard deviations in a normal distribution?
a. 99.7%
b. 95%
c. 68 %
d. 50%
49. Which one the formula is used for df in chi-squire distribution;
a. (row)(column)
b. (row-column)

6. BIOSTATISTICS 6
c. (row-1)(column-1)
d. (row-1)(column)
50. In all research analysis it is not possible to study whole population, we always estimate population
parameters on the basis of;
a. Population information
b. Sample information
c. We could not estimate parameters
d. Estimation of samples
51. Chi-quire test of significance is used when;
a. Data is continuous
b. Data is categorical
c. Data is discrete
d. None of these
52. When two dice and a single coin are tossed together then total sample spaces will be;
a. 36
b. 14
c. 24
d. 72
53. The minimum d.f for the Chi-square test of independence or association is always;
a. 0
b. 1
c. 2
d. N-1
54. Mean is the measure of centraltendency can be calculated for all of the following except;
a. Age
b. Weight
c. Systolic BP
d. Marital status
55. Which one is formula for empirical rule
a. µ± 1SD = 60%
b. µ± 1SD = 65%
c. µ± 1SD = 68%
d. µ± 1SD = 70%
56. First step in calculating median is;
a. Calculate range
b. Arrange data
c. Count the data
d. None of these
57. Appropriate graph to display marital status (Married, Unmarried, Divorced, widow) is;
a. Frequency polygon
b. Scatter plot
c. Pie chart
d. Histogram
58. The best way to display Age data is to draw;
a. Histogram
b. Bar chart
c. Both a & b
d. None of these
59. In a contingency table with 4 rows and 6 columns then degree of freedom is
a. 15

7. 7
b. 24
c. 4
d. 6
60. Probability values fall on scale between:
a. -1 to +1
b. 0 and 1.
c. -3 to + 3
d. 0.05 to 0.01
61. In a contingency table with 4 rows and 6 columns then degree of freedom is
a. 15
b. 24
c. 4
d. 6
62. The variable which is influenced by the intervention of the researcher is called:
a. Independent
b. Dependent
c. Discrete
d. Extraneous
63. Gender, age-class,religion, type of disease, and blood group are measured on;
a. Nominal Scale
b. Ordinal Scale
c. Interval Scale
d. Ratio Scale
64. The minimum size of a Contingency table is : ---------------
a. 1×1
b. 2×2
c. 10×10
d. No minimum size
65. Appropriate graph to display marital status (Married, Unmarried, Divorced, widow) is;
a. Frequency polygon
b. Scatter plot
c. Pie chart
d. Histogram
66. Z score is a type of ____________ score.
a. Outlier
b. Standard
c. Normalized
d. T
67. In testing hypothesis we use different level of significance to test Ho , in most situations level of
significance is not given then we have to use;
a. 1 %
b. 2 %
c. 5%
d. 10%
68. The normal curve is also called a
a. Bell-shaped curve
b. Triangular curve
c. Even curve

8. 8
d. S-curve
69. P-value is the probability of the calculated value, if p-value is zero then we reject the oH after
comparing with;
a. Level ofsignificance
b. Critical value
c. d.f
d. sample size
70. A contingency table (2x2) is used to calculate:
a. t-statistic
b. correlation coefficient
c. variance
d. chi-squire statistic
71. A contingency table (2x2) is used to calculate:
a. t-statistic
b. correlation coefficient
c. variance
d. chi-squire statistic
72. The given formula is used to calculate: (O= Observed frequency, E= Expected frequency)
a. t-test
b. chi-squire statistic
c. correlation coefficient
d. Standard deviation
73. Probability values fall on scale between:
a. -1 to +1
b. 0 and 1.
c. -3 to + 3
d. 0.05 to 0.01
74. Which is NOT a characteristic of normal distribution?
a. Symmetric
b. Bell-shaped
c. Mean = median = mode
d. Negative skewness
75. Which of the following describe the middle part of a group of numbers?
a. Measure of Variability
b. Measure of Central Tendency
c. Measure of Association
d. Measure of Shape
76. According to the empirical rule, approximately what percent of the data should lie within
μ±2σ?
a. 68%
b. 99.7%
c. 90%
d. 95%
77. The sum of the deviations about the mean is always:
a. Range
b. Zero
c. Total Standard Deviation
d. Positive

9. 9
9
e. Negative
78. The middle value of an ordered array of numbers is the
a. Mode
b. Mean
c. Median
d. Midpoin
79. Which of the following is not a measure of central tendency?
a. Percentile
b. Quartile
c. Standard deviation
d. Mode
80. Which of the following divides a group of data into four subgroups?
a. Percentiles
b. Deciles
c. Median
d. Quartiles
81. If the standard deviation of a population is 9, the population variance is:
a. 9
b. 3
c. 21
d. 81
82. If a distribution is abnormally tall and peaked, then is can be said that the distribution is:
a. leptokurtic
b. Pyrokurtic
c. Platykurtic
d. Mesokurtic
83. Sum of dots when two dice are rolled is
a. Discrete variable
b. Continuous variable
c. Constant
d. Qualitative variable
84. The weights of students in a college/school is a
a. Discrete Variable
b. Continuous Variable
c. Qualitative Variable
d. None of these
85. Following all are true for mean EXCEPT;
a. Applicable for continuous data
b. Not applicable for qualitative data
c. Do not affect by extraneous values
d. Affected by each value in data set
86. The most frequent occurring observation is

10. 10
10
a. Mean
b. Median
c. Mode
d. SD
87. The standard deviation divided by the mean of the measurements equals is known as:
a. Standard Deviation
b. The coefficient of variation
c. Variance
d. Zero
88. Large standard deviations suggest that:
a. Scores are probably widely scattered.
b. There is very little deference among scores.
c. mean, median and mode are the same
d. The scores not normally distributed.
89. Sample SD is denoted by;
a. S
b. S2
c.  2
e. 
90. A measure of dispersion of a set of observations in which it is calculated by the difference
between the highest and lowest values produced is called:
a. Standard deviation
b. Variance
c. Range
d. Mode
91. A measure used to standardize the central tendency away from the mean across different
a sample is:
a. skewness
b. Range
c. Z-score
d. Mode
92. When the distribution of data is skewed, one should ideally use;
a. Mean
b. Median
c. Mode
d. None of these
93. The area under normal distribution curve is;
a. 1
b. 0.5
c. 0
d. None of these
94. Negative z-score shows that;
a. Observation is below to mean
b. Observation is above to mean

11. 11
11
c. Observation is equal to mean
d. None of these
95. Z-core is calculated for;
a. Chi-quire distribution
b. Standard normal distribution
c. T-distribution
d. Normal distribution
96. A major purpose of doing research is to infer, or generalize, from a sample to a larger
population this method is known as:
a. Testing of hypothesis
b. Sampling Design
c. Measures of dispersion
d. Probability
97. Statistical approach which helps the investigator to decide whether the outcome of the
study is a
result of factors planned within design of the study or determined by chance is called:
a. Descriptive statistics
b. Inferential statistics
c. Normal distribution
d. Standard deviation
98. Which one the formula is used for df in chi-squire distribution;
a. (row)(column)
b. (row-column)
c. (row-1)(column-1)
d. (row-1)(column)
99. When we make a 95% confidence interval for the population mean using t or z test then
probability or chance of error will be;
a. 0.05
b. 0.1
c. 5
d. 10
100. Statisticisa numerical quantity,whichiscalculatedfrom:
a. Population
b. Sample
c. Data
d. Observations

12. 12
12
102. Data in the Population Census Report is:
a. Grouped data
b. Ungrouped data
c. Primary data
d. Arrayed data
103. In inferential statistics, we study
a. The methods to make decisions about population based on sample results
b. How to make decisions about mean, median, or mode
c. How a sample is obtained from a population
d. None of the above
104. The algebraic sum of deviations from mean is:
a. Maximum
b. Zero
c. Minimum
d. Undefined
Note:Attemptall questioneachquestioncarryequal Marks:
Q1. a. Define the biostatics?
b. brieflydescribe the branchesof biostatics?
c. what are the usesof biostatics?
Q2. a. Define the followingtermsanyfive?
1. Statistics
2. Population
3. Variable
4. Descriptive
statistics
5. Inferential statistics
6. Measures of
centeral tendency
7. Mean
8. Median
9. Mode
10. Normal distribution
3. Followingisthe dataof familymembersunder25yearsold fromcertainpopulation.Findthe mean,
medianandmode of the data.
C-I f
0-5 30
5-10 35
10-15 55
15-20 40
20-25 15

13. 13
13
4. Following data shows age of pregnant women who visited MCH centre during month of February.
Compute Mean. Median and Mode of following data.
22, 21, 18, 21, 21, 20, 25, 24, 17, 20, 18, 25
5. A random sample of size 49 with mean 32 is taken from a normal population whose standard deviation
is 4. Test at 5% LOS that oH : µ = 25
AH : µ ≠ 25
6. Followingisthe Heartrate of eightpatientsadmittedinICU. Calculate Mean,StandardDeviationand
Range of followingdata
98, 92, 104, 98, 94, 108, 102, 96
7.Draw a stemand leaf plotof the followingdata
35 37 17 31 56 42 13 12 23 51
12 45 19 21 33 28 52 34 48 28
8. The Blood group of BSN 1st
Semester student is as below. Construct frequency table and bar chart for
the following data.
B O O A A AB A B B O AB O
AB B B A O O A B O O A B
9. A random sample of size 64 with Mean 25 and S.D 4 is taken from a normal population. Construct 95
% confidence interval
10. What is a Normal Distribution?
11. Write the properties of Normal Distribution.
12. Define Biostatistics and Chi-squire
13. Briefly discuss about the scope of biostatistics in nursing.
14. Define Stem and Leaf Plot
15. Define P-value and Nominal Scale
16. Define Frequency table and Bar chart
17. what are the different scales of measurement? Discuss briefly with examples.
18. A sample of 49 observations is taken from a normal population with a standard
deviation of 10. The sample mean is 55. Determine the 95% confidence interval
for the population mean.
19. Diploma nursing students have obtained following test scores out of 50.
3, 15, 24, 28, 33, 35, 38, 42, 23, 38, 36, 34, 29, 25, 17, 7, 34, 36, 39, 44,
31, 26, 20, 11, 13, 22, 27, 47, 39, 37, 34, 32, 35, 28, 38, 41, 48, 15, 32,

14. 14
14
a) Construct the frequency table with class interval of 10.
b) Draw the histogram
20. Calculate the mean, median and mode for the following set of numbers:
5, 4, 8, 2, 5, 4,5, 3, 6, 5, 4, 5, 2, 8, 6, 5, 4, 8, 3, 4,
21. Find the Range and, variance and for the following series of numbers
2, 3, 6, 8, 11,12,13,14
22. what is a normal distribution? Enlist properties of normal distribution