Mrs. Taylor is picking 4 students to organize a class field trip. There are 25 students in her class. How many different ways can she pick the 4 students?

[list=1][br][*]Determine whether permutations or combinations are being counted.[br][*]Find the number of combinations.[br][*]Confirm your answer using your graphing calculator.[br][/list][br][br]This applet is provided by Walch Education as supplemental material for the [i]UCSS Secondary Math II[/i] program. Visit [url="http://www.walch.com"]www.walch.com[/url] for more information on our resources.