Answer Exercise 22 assuming the diagram has six rows six dots in each row. Angel

Question

Answer Exercise 22 assuming the diagram has six rows six dots in each row. Angela's coworkers Pam, Phyllis, Jim, and Dwight have volunteered to help with the preparations for a party. How many ways can Angela assign someone to buy beverages, someone to arrange for food, and someone to send out invitations? Assume that no person does two jobs. Suppose that the staff of a weekly newspaper, the Southern California Sentinel, consists of (A)drian, (B)rian, (C)armen, (D)avid, and (E)mily. The editor will choose a features editor and a sports editor from these five people. If the sports editor must be different from the features editor, in how many ways can the editor make this selection? In Exercises 27 and 28, draw the tree diagram only if you must. Try to picture the tree mentally without actually putting it on paper. If you drew a tree diagram showing how many ways five coins could be flipped, how many branches would it have? If you drew a tree diagram showing how many ways six coins could be flipped, how many branches would it have? The role-playing game Dungeons and Dragons uses a tetrahedral die that has four congruent triangular sides numbered 1, 2, 3, and 4. How many branches

Explanation / Answer

There are total 5 staff members. Since sport editor must be different from featrue editor so sport can be choosed in 5 ways and feature editor in 4 ways. So possible number of assignments is

5*4 = 20

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