| Single Coin | |
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| Single Dice | |
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A dice or die unless otherwise specified has six faces, each engraved or marked with either 1, 2, 3, 4, 5 or 6 dots. Each dot is considered a number and therefore, we assume that the faces of the die or dice are marked with the numbers 1, 2, 3, 4, 5 or 6 respectively.
When a dice or die is tossed/rolled/thrown, one of these faces appears which implies that one of the six numbers appear on the face of the dice/die. There is an equally likely chance for all these six faces i.e. the six numbers to appear. Moreover, only one of these will appear on a single throw.
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| Single Card | |
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A pack of cards unless otherwise specified has 52 cards. The 52 cards are divided into four sets of 13 each.
Each set has a unique identification in the form of a symbol marked on the cards. The four symbols used to identify/mark the cards are "Spades" (♠), "Clubs" (♣), "Diamonds" (♦) and "Hearts" (♥) Two of the sets are colored red and two others black i.e. there are 26 (13 × 2) red cards and 26 (13 × 2) black cards. Each set has 13 cards which are marked "A", "2", "4", "5", "6", "7", "8", "9", "10", "K", "Q", "J".
Well shuffled CardsWell shuffled cards implies cards that are mixed up well.
ExperimentThe experiment that we identify for the purpose of calculating probability in case of drawing cards would vary depending on the number of cards being drawn at a time.Drawing one card is an experiment different from the experiment of drawing two cards. As the number of cards drawn vary, the experiment varies. Experiment of drawing a single cardWe deal with the experiment of drawing a single card here. In this experiment, i.e. In the experiment of drawing a card from a pack of 52 cards,The total number of possible choices = Number of ways in which one card can be drawn from the total 52 cards
Favourable/Favorable ChoicesThe number of favourable/favorable choices for drawing a required card can also be calculated by a similar logic. To enable the calculation of the number of favourable/favorable choices,
Notice that you can find the total number of possible choices for the experiment as well as the number of favourable/favorable choices for the event from the table. The number of favourable/favorable choices = Number of ways in which one card which is a red card can be drawn from the total 26 cards
Notice that you can find the total number of possible choices for the experiment as well as the number of favourable/favorable choices for the event from the table. The number of favourable/favorable choices = Number of ways in which one card which is either a spade or a king can be drawn from the total 16 cards
AdvicePlease follow the above procedure of building up a table for finding out the number of favourable/favorable choices. It would help you a lot in solving majority of the problems based on the mathematical definition of probability. |
| Picking up One entity from a group | |
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You will come across a number of problems involving picking up one entity from a group. An example of some of the groups that you would be encountering
Problem Solving LogicA logic similar to the one adopted for solving problems where a card is drawn from a pack of cards is adopted.
This table helps you in finding the solution fast. Notice that you can find the total number of possible choices for the experiment as well as the number of favourable/favorable choices for the event from the table. |
| Author Credit : The Edifier | ... Continued Page PSC :: 2 |









