PMF

• The mean is the average value of a set of numbers.
• PROBABILITY - chances / possibilities of certain Outcomes
• 2 TYPES OF STATISTICS DESCRIPTIVE STATISTICS and Inferential statistic
• DESCRIPTIVE STATISTICS - summarize the information collected through tables, graphs, measures of central tendency.
• INFERENTIAL STATISTICS conclude
• variable any quantity that can be measured
• 2 TYPES OF RANDOM VARIABLE

  DISCRETE RANDOM VARIABLE

  Countable values (no. of chairs)

  CONTINUOUS RANDOM VARIABLE

  measurement (height, time)
• PMF (Probability Mass function) you can get the pmf by 3 presentation. Tabular, Formula , Histogram
• Mean (Expected Value) measure of the central location. of a random variable.
• Variance ( to get the difference from (0-1-2-3-4-5)
• Standard Deviation

  ( 0 to 5)