hi, pwede mo ba akong loadan? bawal? haha, sorry ha. eto lang kasi ako, namamalimos. palaging walang load, haha. sorry, sana hindi na lang ako pinanganak. sana pinutok na lang ako sa kumot.
GAYAHIN ANG KAGANDAHAN KO
Answer:
(see explanation) Credits po sa my ari ng answer nato at paki brainliest po ako ty po
Step-by-step explanation:
Combination is a selection of things from a possible pool or collection, such that the order at which they are selected does not matter.
The formula for choosing r things from a pool of n possible ones, with no regards to order is
When you pick something from a pool and the order does not matter, it usually means that the importance is emphasized on that thing being picked or not, rather than on what order is it.
Let us take the Ms. Universe Pageant as an example.
If you are picking a 1st, 2nd, and 3rd place winner from a pool of contestants, the order matters since 1st, 2nd and 3rd place are different.
In contrast, when you pick finalists (like a top 10) on a the pageant from a possible pool of contestants, the order at which the finalists are selected does not matter. What would matter there is whether a certain contestant gets picked or not.
The first example uses permutation, where order is important; while the 2nd example uses combination.
Other examples of combination are when you pick multiple things at the same time instead of one-by-one. The order will not matter as long there since there is no order. For example, drawing multiple (2 or 3) balls at the same time from a box full of balls will use combination. You can also use this when drawing cards from a standard deck of cards to form a 5-card hand.
1) There are 8 essay questions in an exam. Students are required to answer only 2 of them. In how many ways can a student choose the essay questions to answer?
In this problem, picking and answering the essay questions matter instead of the order at which they are selected. This is why we use combination.
2) A committee of 6 school representatives is to be chosen from the class presidents of each sections in a school. The school has 42 different class sections. In how many ways can this committee be formed.
Again, the order does not matter here because what matters is whether a certain class president is chosen or not. We use combination
3) In the game of scrabble, 100 letter tiles are put in a bag at which players get their starting tiles. A player draws 7 letter tiles at the beginning of the game. In how many ways can he choose the letter tiles?
Although 100 seems a lot, we have to deal with this since these are rules of the game. It is also a combination problem since it is drawing things at the same time. We also use combination.
For more information about combinations, click here.
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