Sets(Venn Diagram) Combination and Permutation: 1. A club has 30 members. In how many ways can the president, treasurer and secretary be chosen to form a committee of three? 2. In class of 25 students, a first and second prize are to be awarded. In how many different
Sunday, 10 July 2016
Introduction to Statistical Data
In this topic it helps to differentiate data. These are the main topic for Statistical Data: Quantitative and Qualitative Discrete and Continuous data Quantitative and Qualitative Quantitative is a numerical data. For example, the cost of a shirt. Qualitative is a non-numerical data. For example, the colour of a
Permutation and Combination
Permutation It is the number of different ways that a certain number of objects can be arranged in order from a large number of objects. Permutation is about arrangements. Combination It is the number of different ways that a certain number of objects as a group can be
Representation of Statistical Data
There are many ways to present data, either by using graph or table. These are some of graphs and tables that are mainly use to convey useful information. Frequency Table Bar Graph Pictograph Line Graph Pie Chart Histogram Frequency Table Frequency Table Example A frequency table is created by
Measures of Central Tendency
There are 3 main things in Measures of Central Tendency: Mean Median Mode Mean It is a sum of all the data values divided by the total number of data. Formula: Median It is the middle value when the data are arranged in ascending order. Mode It is the
Saturday, 9 July 2016
Sets
Sets is the collection of distinct objects. There are 3 common things for sets: Unions(∪)-to collect the sets together and combine it. Intersection(∩)-to see the common in a sets. Complement(')- the sets that are complemented will be subtracted. Examples 1: x={3,8,5,14} y={4,3,13,15} x ∪ y={3,8,5,14,4,3,13,15}- all of the numbers
Sunday, 3 July 2016
Probabilty
Probability is the quality of being probable or the extent to which something likely to happen. For example, when tossing a coin, there are two possibles outcomes which is the Head or the Tail. So, the probability of the coin landing either Head or Tail is 1/2 .
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