There is a group of 5 seniors and 8 first year graduate students to fill the openings of local news reporters. suppose that we pick 4 students, who are randomly picked from this pool for interviews. using this given information, calculate the following:

1.) find the probability that at least 2 first year graduate students are among the chosen group. note that this is a combinatorics problem and the answer can be left in terms of c k, n. show all work.

Step-by-step explanation:

The total amount of students in the pool is 13.

1) Find the probability that at least 2 first year graduate students are among the chosen group.

The total amount of different ways to chose 4 students from a pool of 13 is

The total amount of ways to choose at least 2 first year graduate students would be:

Ways of choose 2 first year students and 2 seniors + ways of choose 3 first year students and 1 senior + ways of choose 4 first year students. (we are adding and not multiplying because it's "choose 2 first year OR 3 OR 4")

Therefore, the probability would be:

median is the value separating the higher half of a data sample, a population or probablity distribution from the lower half.

step-by-step explanation:

say you have 3,8,7,3,1,9,8 order them from lowest to highest

if orderd it would be 1,3,3,7,8,8,9 now you take away from the lowest and the highest until you end up in the middle.

so you would remove the 1 and 9 leaving you with 5 digits remaining

when you've reached the middle that would be your answer so in this case the answer is 7

if there were two numbers left say 7 and 5 you'd and them together so 12 then divide by 2 witch would equal 6 so the answer would be 6

good luck on that project hoped i you at all

70.30

step-by-step explanation: