Six friends go to a movie. How many ways can they sit in a row of six seats? cou

Question

Six friends go to a movie. How many ways can they sit in a row of six seats? counting principle combination factorial permutation In a sweepstakes with seven hundred entries, the first winner selected receives the grand prize, the second receives first prize, and so on until all thirty-five prizes are awarded. How many possible outcomes are there? counting principle combination factorial permutation Of the fifty states, five are randomly selected to have their governor participate in a summit. How many different groups of governors can go? counting principle combination factorial permutation Fill in the blank with the appropriate problem number (18, 19, or 20) and then give the solution (you may use scientific notation, rounded to the nearest tenth, if necessary). Problem 21 can be solved with the setup given in problem_____ and the solution to problem 21 is: Problem 22 can be solved with the setup given in problem _____, and the solution to problem 22 is: Problem 23 can be solved with the setup given in problem _____, and the solution to problem 23 is: Circle the most appropriate description. A city planning committee surveys 100 people waiting at a bus stop about the expansion of the public transportation system. random sample systematic sample self-selected sample convenience sample bipartisan sample stratified random sample Volunteers stop to survey residents at every fourth house from the end of each block in town random sample systematic sample self-selected sample convenience sample bipartisan sample stratified random sample

Explanation / Answer

Ans(21):
We use permutation to calculate number of ways in which 6 friends can be seated into 6 seates.
which is 6P6=6!/(6-6)!=6!/0!=720/1=720

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