Q: Suppose Dan is going to create a Spotify playlist with 12 songs
Suppose Dan is going to create a Spotify playlist with 12 songs. In how many ways can the 12 songs be played without repetition?
See AnswerQ: In how many ways can 15 students be lined up?
In how many ways can 15 students be lined up?
See AnswerQ: A salesperson must travel to eight cities to promote a new marketing
A salesperson must travel to eight cities to promote a new marketing campaign. How many different trips are possible if any route between cities is possible?
See AnswerQ: The music player on an iPhone plays each of 10 songs.
The music player on an iPhone plays each of 10 songs. Once a song is played, it is not repeated until all the songs have been played. In how many different ways can the player play the 10 songs?
See AnswerQ: Companies whose stocks are listed on the New York Stock Exchange (
Companies whose stocks are listed on the New York Stock Exchange (NYSE) have their company name represented by either one, two, or three letters (repetition of letters is allowed). What is the maximum...
See AnswerQ: Companies whose stocks are listed on the NASDAQ stock exchange have their
Companies whose stocks are listed on the NASDAQ stock exchange have their company name represented by either four or five letters (repetition of letters is allowed). What is the maximum number of comp...
See AnswerQ: Outside a home there is a keypad that will open the garage
Outside a home there is a keypad that will open the garage if the correct four-digit code is entered. (a) How many codes are possible? (b) What is the probability of entering the correct code on the f...
See AnswerQ: A Social Security number is used to identify each resident of the
A Social Security number is used to identify each resident of the United States uniquely. The number is of the form xxx–xx–xxxx, where each x is a digit from 0 to 9. (a) How many Social Security numbe...
See AnswerQ: A student entering a doctoral program in educational psychology is required to
A student entering a doctoral program in educational psychology is required to select two courses from the list of courses provided as part of his or her program. EPR 616, Research in Child Developmen...
See AnswerQ: Suppose that a local area network requires eight letters for user names
Suppose that a local area network requires eight letters for user names. Lower- and uppercase letters are considered the same. How many user names are possible for the local area network?
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