Stat - Lec 3

Cumulative Frequency Distribution

A term defined as a distribution that shows the number of observations less than or equal to a specific value

Relative Frequency

A term defined as number of times a specific event occurs compared to the total number of events

Class Midpoint

A term defined as the lower class limit plus the upper class limit divided by 2

Class

A term for a a quantitative or qualitative category?

Class Boundaries

A term use to separate classes so that there are no gaps in the frequency distribution

Frequency

A term where the number of data values contained in a specific class

Class Boundaries

A term wherein defined as the exact or true limits of each class?

Categorical FDT

A type of FDT that is used for data that can be placed in specific categories such as nominal or ordinal level

Grouped FDT

A type of FDT that is used for quantitative variables with large range of data

Ungrouped FDT

A type of FDT that is used when data are numerical and each class is only one unit wide

Pie Chart

A type of graphical form that is used to represent nominal data(data classified in different categories), visually represents a distribution of categories

Range/k

Formula for Class Width?

f/n

Formula for Relative Frequency

f/n x 100

Formula for percentage frequency?

Class Width

Found by subtracting the lower class limit of one class from the lower class limit of the next class

Highest Value minus Lowest Value in a distribution

How do you get the range?

Continuous Variable

In a line graph, the x-axis represents what?

Scale and Measurement Values

In a line graph, the y-axis represents what?

subtract 0.5

In finding the class boundaries of the LCL, what do you need to do?

add 0.5

In finding the class boundaries of the UCL, what do you need to do?

Paragraphs or Sentences

In textual data presentation, the data are presented in ______ or _______

Histogram

It is a graph that displays quantitative data by using continuous vertical bars of various heights to represent the frequencies of the classes

Frequency Polygon

It is a graph that displays the data by using lines that connect points plotted for the frequencies at the midpoints of the classes

Ogive

It is a graph that represents the cumulative frequencies for the classes in a frequency distribution

Line Plot

It is a type of graphical form that is useful for representing time-series data (variables that are observed overtime)

Tabular Form

It is most appropriate for presenting individual information, and can present both quantitative and qualitative information

Frequency Distribution Table

It is the organizing of raw data in table form, using classes and frequencies?

Qualitative Research Design

Most of the time this type of Research Design uses textual data presentation. What type of Research Design is that?

True

TRUE or FALSE: A graph format that best presents information must be chosen so that readers and reviewers can easily understand the information

False (It should be after)

TRUE or FALSE: A method of presentation must be chosen before carefully weighing the advantages and disadvantages of different methods of presentation

True

TRUE or FALSE: Bars may be created vertically or horizontally

False (It should be after data gathering)

TRUE or FALSE: Data presentation is very important when you are doing research. This is actually done before data gathering

False (It should be different methods)

TRUE or FALSE: Even when the same information is being conveyed, same methods of presentation must be employed depending on what specific information is going to be emphasized

True

TRUE or FALSE: In having a pie chart, you need to include the frequency and the percentage

False (It should be grouped FDT)

TRUE or FALSE: In ungrouped FDT, data must be grouped into classes that are more than one unit in width

True

TRUE or FALSE: One of the strength of tabular form is that they can accurately present information that cannot be presented with a graph

True

TRUE or FALSE: Raw data must be summarized, organized, and analyzed to usefully derive information from them

True (Researchers are understood as authors as well)

TRUE or FALSE: Researchers must pay as close attention to selecting appropriate methods of data presentation as when they were collecting data of good quality and analyzing them

False (It should be pie chart, most appropriate din ang table pero sa pagpresent lang ng indiviual data and not grouped)

TRUE or FALSE: Table is generally the most appropriate format for representing information grouped into a small number of categories

True

TRUE or FALSE: Text can be used to provide interpretation or emphasize certain data

False (It should be text)

TRUE or FALSE: Text is the main method of conveying information as it is used to explain results and trends, and provide contextual information

True

TRUE or FALSE: Text, Tables, and Graphs aid readers in understanding the content of the research, sustain their interest, and effectively present large quantities of complex information

communication media

Text, tables, and graphs are effective ____________ that present and convey data and information

Class Limits

The term to the range of values included in a class

Line Graphs

This are useful for studying patterns and trends across data

Graphical Form

This method of data presentation simplify complex information by using images and emphasizing data patterns or trends, and are useful for summarizing, explaining, or exploring quantitative data

Scatter Plot

This type of graphical form present data on the x-and y-axes and are used to investigate an association between two variables

Bar Graph and Histogram

This type of graphical form used to indicate and compare values in a discrete category or group, and the frequency or other measurement parameters

1. Scatter Plot 2. Bar Graph and Histogram 3. Pie Chart 4. Line Plot

Types of Graphical method of Data Presentation?

1. Categorical 2. Ungrouped 3. Grouped

What are the 3 basic types of FDT?

1. Textual 2. Tabular Form 3. Graphical Form

What are the Methods of Data Presentation?

Upper Class Limit

What class limit is being identified when talking about the highest data value in the class?

Lower Class Limit

What class limit is being identified when talking about the smallest data value in the class?

Frequency Distribution Table

What does FDT means?

Range

What is the result when the highest value minus the lowest value in a distribution?

Tabular Form

What method of data presentation wherein it conveys information that has been converted into words or numbers in rows and columns?

Raw Data

When we collect or gather our data, we are collecting ________

1 or 2

You can use textual data presentation in a quantitative information as long as it consists of _______ numbers?