Mathematics
07.05.2020 09:31
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Five people plan to meet after school, and if they all show up, there will be one
Five people plan to meet after school, and if they all show up, there will be one group of five people. However, if only three of them show up, in how many ways is this possible?
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alyssa2157
4,6(46 marks)
Answer to the question: Five people plan to meet after school, and if they all show up, there will be one group of five people. However, if only three of them show up, in how many ways is this possible?
βββββββββββββββββββββββββββββββββββββββ
Selecting 2 people of of five can be done in 
ways.
=(5!)/(2!*3!)
=10 ways
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babas97
4,6(80 marks)
Four of the 7 students got a sticker, so you need to turn that into a percent. To do that, divide 7 by 4, which gives you .57. That means that 57% of students got a sticker.
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