Math

• Frequency Distribution Table (FDT)


  A table that shows the entries with their corresponding frequencies
• Frequency Distribution Table (FDT)

  • Used to organize data and recognize patterns
• Frequency


  Number of data entries
• Data classes


  Intervals of data values
• Ungrouped data


  Only one data in a data
• Grouped data


  Multiple data in a data
• Lower class limit


  The least value that can belong to a class
• Upper class limit


  The greatest value that can belong to a class
• Class width

  The difference between the upper (or lower) class limits
• Class mid-point

  Middle value of each data class
• Range

  The difference between the largest value and the smallest value in a data set
• Cumulative frequency

  The number of data elements in that class and all previous classes
• Relative frequency

  The percentage of data elements in that class
• Relative frequency

  • Usually written in percent form
• Line graph

  Most suitable when we want to show the rising and falling trend of a data over a period of time
• Line graph


  • Horizontal line shows the categories being considered
  • Vertical line indicates frequency
  • Rising is progress
  • Falling is retrogress
  • No changes is stagnant
• Ogive graph


  A type of graph
• Pictograph


  A diagram that uses pictures to show statistics
• Bar graph


  Uses bars of different lengths and of same widths to show the frequencies for each of several categories
• Histogram


  A type of bar graph that shows
• Pie charts


  Shows the division of a whole into its parts
• Central tendency


  Numerical values descriptive numbers that we can use in representing the whole set of data
• Ungrouped data


  Another type of statistical data that are not classified as a group or have not subdivided in a form of a groups
• Mean or arithmetic mean (x)

  The most popular measure of position also known as the "average"
• Median (Md)


  The middle measure of middle value in an ordered arrangement of data, wherein half of the terms are located above the median and half of the terms are below the median
• Mode (Mo)


  The measure of the value which occurs more frequently in a set of data
• Mode (Mo)


  • The value with the greatest frequency