Biostatistic

Question 1

The numerical data have been artificially created,but none of the numbers have any numerical meaning.such as assigning numbers to gender say (1) male and (2) female.

Answer 1

Nominal data

Question 2

Is a data for which numerical order is meaningful. Such as military ranks,teaching position.

Answer 2

Ordinal data

Question 3

Set of data in which we can form differences of measurement but cannot multiply or divide.example temperature

Answer 3

Interval Data

Question 4

Data which we can form multiples and quotients as well as difference. Example weight,height,length,number of people and amount of monetary transactions.

Answer 4

Ratio data

Question 5

A method of drawing out a sample from a population without definite plan,purpose or pattern.

Answer 5

Sampling

Question 6

A method by which every element of a population has a chance of being included in a sample.

Answer 6

Random sampling

Question 7

The best known and most commonly used prop-ability sample. A method of selecting sample from universe such that each member has equal chances of being included in the sample.

Answer 7

Simple random sampling

Question 8

A sampling technique with random start.

Answer 8

Systematic random sampling

Question 9

Specifically used when the population can naturally be classified into groups or strata.

Answer 9

Stratified random sampling

Question 10

Used when population is divided into groups or cluster. A sampling technique where group not the individual are selected.

Answer 10

Cluster sampling

Question 11

Rarely used sampling technique because of the complexity’s of its strategy and also because it incurs a lot of effort.

Answer 11

Multi-stage sampling

Question 12

A sampling strategy based on the convenience of the researcher. Sometimes called networking sampling.

Answer 12

Accidental or convenience sampling

Question 13

The researcher select a particular group based on a particular criteria.

Answer 13

Purposeful or judgement sample

Question 14

Oftentimes used to infinite population and therefore the researcher cannot get a random sample.

Answer 14

Quota sample

Question 15

A collection of information about the study under investigation.

Answer 15

Data

Question 16

is used when the data presented are few. The data is presented in either paragraph or narrative form.

Answer 16

Textual

Question 17

is a systematic way of arranging data in columns and rows according to classification or categories. It is used when data presented is in more detailed information.

Answer 17

Tabular

Question 18

way of presenting data by means of graph. It is a pictorial representation of a set of data.

Answer 18

Graphical

Question 19

used to show changes between two quantitative data. Relationship between this data is graphed in a rectangular coordinate plane.

Answer 19

Line Graph

Question 20

use to make a direct visual comparison of data. The bars in the graph maybe drawn horizontally or vertically to represent the information.

Answer 20

Bar Graph

Question 21

represented by a circle divided into parts. It shows the relationship among parts as well as the relationship of part to the whole.

Answer 21

Circle or Pie Graph

Question 22

uses pictures or icons to represent the quantities being represented.

Answer 22

Pictograph

Question 23

Is constructed as a sequence of vertical rectangles by marking off the TCB along horizontal with its base equal to the class interval and the height corresponding to the class frequency.

Answer 23

Histogram

Question 24

is a simple line graph joining the midpoint of the bars of the histogram.

Answer 24

Frequency polygon

Question 25

is constructed by plotting the cumulative frequency of each class against the TCB.

Answer 25

Frequency Ogive

Question 26

is constructed by plotting the less than cumulative frequency of each class against the upper TCB of the corresponding class. The point representing the cumulative frequency are then joined by a straight line.

Answer 26

Less than Ogive

Question 27

make use of the greater cumulative frequency of each class against LTCB of the corresponding class.

Answer 27

Greater than Ogive

Question 28

present a graphical display of the data using the actual numerical values of each data point.

Answer 28

Stem and Leaf Plot

Question 29

is the arrangement of numerical data according to size or magnitude. A tabular presentation of qualitative or quantitative data grouped into categorical or non-overlapping numerical intervals called classes.

Answer 29

Frequency distribution table (FDT)

Question 30

the number of occurrences of a measurement.

Answer 30

Frequency

Question 31

the difference between the lowest and the highest value in the set of data.

Answer 31

Range

Question 32

the lowest and highest data values for a class.

Answer 32

Class Limit

Question 33

are the average of the upper limit of one class and the lower limit of the next class.

Answer 33

Class Boundaries

Question 34

is the number entries in class divided by total number of entries.

Answer 34

Relative Frequency

Question 35

is the total of all class frequencies up to and including the present class.

Answer 35

Cumulative Frequency

Question 36

The most common, effective, stable, reliable with least probable error measure of central tendency.

Answer 36

Mean

Question 37

Known as the middlemost point in the frequency distribution. Best measure of central tendency when the distribution is irregular or skewed. It is the centermost score in the set of data.

Answer 37

Median

Question 38

The most frequent occurring score in the set of data. It is always a real value because it does not fall on zero. It is simple to approximate especially when the number of cases is small. It is classified as unimodal, bimodal, or trimodal.

Answer 38

Mode