In each of the following scenarios tell whether permutations

In each of the following scenarios, tell whether permutations (ordered) or combinations (unordered) are being described. Explain your answer. (3 pts.)

A president, vice-president, and secretary are chosen from a 25-member garden club.

b. A cook chooses 5 potatoes from a bag of 12 potatoes to make a potato salad.

c. A teacher makes a seating chart for 22 students in a classroom of 30 desks.

Solution

A)

ans:Selection(choosing) of a president,vice-president and a secretery from 25 members is unordered event hence it isa       Combination.
B)

ans: Choosing of 5 potatos from a bag of 12 potatos also unordered event,hence which is Combination.

C)

ans : Making of seating chart of 22 students in a classroom of 30 desks is arrangement(ordered),hence it is a Permutation.