Draw the Venn diagram: The 3 most common colors in the 193 flags of the member nations of the UN are Red, White and Blue.52 flags contain all 3 colors103 flags contain both red and white66 flags contain both red and blue73 flags contain both white and blue145 flags contain red, 132 flags contain white, 104 flags contain blue.1) How many flags contain none of the 3 colors2) how many flags contain red and white but not blue?
Permutations and Combinations
If there are 5 dishes, they can be relished in any order at a time. In permutation, it should be in a particular order. In combination, the order does not matter. Take 3 letters a, b, and c. The possible ways of pairing any two letters are ab, bc, ac, ba, cb and ca. It is in a particular order. So, this can be called the permutation of a, b, and c. But if the order does not matter then ab is the same as ba. Similarly, bc is the same as cb and ac is the same as ca. Here the list has ab, bc, and ac alone. This can be called the combination of a, b, and c.
Counting Theory
The fundamental counting principle is a rule that is used to count the total number of possible outcomes in a given situation.
Draw the Venn diagram: The 3 most common colors in the 193 flags of the member nations of the UN are Red, White and Blue.
52 flags contain all 3 colors
103 flags contain both red and white
66 flags contain both red and blue
73 flags contain both white and blue
145 flags contain red, 132 flags contain white, 104 flags contain blue.
1) How many flags contain none of the 3 colors
2) how many flags contain red and white but not blue?
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