How many groups of 4 people can you select from 7 people position of people in each group does not matter?
Hence, a committee of 4 people be selected from a group of 7 people in 35 ways.
What is permutation in DM?
Permutation: Any arrangement of a set of n objects in a given order is called Permutation of Object. Any arrangement of any r ≤ n of these objects in a given order is called an r-permutation or a permutation of n object taken r at a time. It is denoted by P (n, r)
How long will it take a principal of Rs 5100 to yield Rs 610 at 5.6 per annum?
610 at 5.6\% per annum (simple. interest)? 2.14 years.
How many permutations are there of five students selected from a group of 10?
252
Therefore, the number of ways of selecting a committee of 5 members from a group of 10 persons is 252.
How many 4 people can be made from a group of 9 players?
There are 6 different choices for the fourth person. This gives 9×8×7×6 different committees, however this will include the same combinations of people. There are 4×3×2×1 ways in which 4 people can be chosen. 9×8×7×6×54×3×2×1=126 different committees.
How many ways to pick one person from 6?
We now have 210 people, and need to choose ANY 1. i.e. there are 44,100 ways to pick any one person from 6, where those 6 are picked at random from a pool of 10. But if you are looking for a particular individual, then it’s different..
How many ways can you pick 6 people from a pool?
There are 10C6 = 210 ways of picking 6 people from a pool of 10, without regard to order (and presumably replacement) We now have 210 people, and need to choose ANY 1. There are 210 ways of doing this (210C1) = 210. since this “particular person “ could be any of these 210, that gives 210 X 210 = 44,100
How many people can occupy 5 places in 120 ways?
So in the second position, 4 people can occupy in 4 ways. Now one of the five persons have occupied the first place. So in the second position, 4 people can occupy in 4 ways. Hence 8 people will occupy 5 places in 120 ways when none of the three specific people are selected.
What is the probability that a person will be picked?
Since you are picking 6 people out of 10, the probability that a particular person will be picked is 6/10 = 60\%. This is very ambiguous now looking back on it. There is no mention of order of selection so we have to assume any order matters.
https://www.youtube.com/watch?v=qrmPjghLW2k