MATH G4 TERMS

• Permutations are arrangement of things in a definite order.
• nPr is the number of permutations that could be made with n things taken r at a time.
• Permutations with Repetition Formula P=n!/a!b!c!
• Combination is a selection made from a group of items without regard to the order.
• Probability denotes the possibility of the outcome of any event.
• Sample space is a set of all possible outcomes.
• Outcome is each element in the sample space.
• Cardinality are numbers of elements in a given event.
• Fundamental Counting Principal determines number of possible outcomes when there are two or more characteristics.
• Quartiles are the values that divide a list of numerical data into three quarters.
• The Quartiles are points that divides ranked data into four equal parts. Each set of data has three quartiles
• he middle part of the three quarters measures the central point of distribution and shows the data which are near to the central point.
• Ungrouped data . It is a type of data that has not been organized or grouped into specific categories. It is also known as raw data or unorganized data.
• The difference between the upper quartile (Q3) and the lower quartile (Q1) in a set of data is the Interquartile range.
• Grouped data on quartiles refers to the process of dividing a data set into four equal parts, known as quartiles.
• XLB = lower boundary of the

  quartile class
• N = total frequency
• cf = cumulative frequency before the quartile class
• fq = frequency of the quartile class
• i= size of the class interval
• Grouped data means the data (or information) given in the form of class intervals such as 0-20, 20-40 and so on.
• Blaise Pascal discovered Combinatorics in the 17th century