Biostatistics

Question 1

Define statistics?

Answer 1

A scientific discipline covers data collection, data preparation, data
presentation, data summarization and information inference with data
analysis.

Question 2

How many dimensions of statistics are there?
a. Two
b. Three
c. Four
d. Five

Answer 2

Three

Question 3

Which of the following is NOT the dimensions of statistics?
a. Descriptive Statistics
b. Probability Theory
c. Differential Theory
d. Inferential Statistics

Answer 3

Differential Theory

Question 4

What does Descriptive Statistics help in?

Answer 4

From data collection to data summarization.

Question 5

Inferential Statistics helps in Data analysis and Modelling. True or false?

Answer 5

True

Question 6

Probability Theory shows?
a. Probability distributions and Sampling distributions
b. From data collection to data summarization.
c. Data analysis and Modelling.

Answer 6

Probability distributions and Sampling distributions

Question 7

_____________ is an applied field of statistics to the life and
health sciences

Answer 7

Biostatistics

Question 8

__________ is the results of experiments and measurements

Answer 8

Data

Question 9

What is the starting points of statistical process?

Answer 9

Data

Question 10

Starting points of decision making process is?

Answer 10

Information

Question 11

Information is the results of statistical process. True or false?

Answer 11

True

Question 12

What are the two types of data?

Answer 12

Constant and variable

Question 13

_______ and _______ are the types of Variables.

Answer 13

Qualitative and Quantitative

Question 14

Which of the following is a Qualitative Variable?
a. Age
b. Weight
c. Length
d. Gender

Answer 14

Gender

Question 15

Which of the following is NOT the Quantitative Variable?
a. Blood pressure
b. Blood group
c. Weight
d. Length

Answer 15

Blood group

Question 16

Which scale does not come under Scale Hierarchy?
a. Nominal Scale
b. Ordinal Scale
c. Numerical Scale
d. Interval Scale

Answer 16

Numerical Scale

Question 17

What does Ratio Scale shows?

Answer 17

numerical and absolute measures

Question 18

Selection of Units is through __________ and _________

Answer 18

Census and sampling

Question 19

Sampling Methods are divided into?

Answer 19

Probability Sampling and Non-Probability Sampling.

Question 20

Primary Data Sources are the data that is collected by teachers. True or false?

Answer 20

False. Primary Data Sources are the data that is collected by researchers.

Question 21

Data that is gathered from any data sources; governmental or private
institutions, libraries, previous studies, e-sources etc. is called?

Answer 21

Secondary Data Sources

Question 22

First step of Data Preparation & Presentation is?

Answer 22

To organize data

Question 23

What does Frequency Distribution shows?

Answer 23

A design showing frequencies of all observed outcomes.

Question 23

What does Frequency Distribution shows?

Answer 23

A design showing frequencies of all observed outcomes.

Question 24

Data is NOT illustrated by? a. Drawings b. Bar chart c. Pie chart d. Histograms

Answer 24

Drawings

Question 25

Histogram is the illustration of frequencies based on finite intervals of a continuous random variable. True or false?

Answer 25

True

Question 26

Name the four main measures of data summarization.

Answer 26

Central Tendency Dispersion Skewness Kurtosis

Question 27

Kurtosis is the measure of symmetry. True or false?

Answer 27

False. Kurtosis is the measure of tailedness.

Question 28

Central Tendency is? a. measure of variability b. measure of symmetry c. measure of location d. measure of tailedness

Answer 28

measure of location

Question 29

Dispersion is? a. measure of variability b. measure of symmetry c. measure of location d. measure of tailedness

Answer 29

measure of variability

Question 30

Skewness is? a. measure of variability b. measure of symmetry c. measure of location d. measure of tailedness

Answer 30

measure of symmetry

Question 31

Central Tendency is calculated by _________, _________ and __________

Answer 31

Mean, mode, and median

Question 32

The value that repeats most often is called?

Answer 32

Mode

Question 33

Mode is suitable for which type of data?

Answer 33

Suitable for categorical and especially nominal data.

Question 34

The value that separate data as two equal parts is called?

Answer 34

Median

Question 35

Median is suitable for which type of data?

Answer 35

Suitable for categorical and especially ordinal data.

Question 36

___________ is the distance between maximum and minimum values.

Answer 36

Range

Question 37

The formula for calculating range is?

Answer 37

Range= X max - X min

Question 38

The square of standard deviation is called ___________

Answer 38

Variance

Question 39

The ratio of standard deviation to arithmetic mean is called?

Answer 39

Coefficient of variation

Question 40

Can we find ordinal scale from nominal scale?

Answer 40

No. We can find nominal scale from ordinal scale but NOT vice versa.

Question 41

A Statistic is the information based on _______.

Answer 41

Data

Question 42

Statistics is studied in two ways, name them?

Answer 42

Mathematical or applied.

Question 43

Interval Scale shows? a. unordered grouping b. ordered grouping c. numerical and relative measures d. numerical and absolute measures

Answer 43

numerical and relative measures

Question 44

Nominal Scale shows?

Answer 44

Unordered grouping

Question 45

In Probability Sampling, units are selected based on the principle of randomization. True or false?

Answer 45

True

Question 46

In Non-Probability Sampling, units are selected based on ___________

Answer 46

A subjective judgement.

Question 47

Second step to Data Preparation & Presentation is?

Answer 47

To illustrate data

Question 48

_________ is the number of occurrences of an outcome.

Answer 48

Frequency

Question 49

A data with no any processing is called?

Answer 49

Raw data