A group of 25 high school students were asked whether they use either Facebook or Twitter or both. Fifteen of these students use Facebook and twelve use Twitter. How many use Twitter only?And How many use both networks?
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A group of 25 high school students were asked whether they use either Facebook or Twitter or both. Fifteen of these students
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Using the data given you'll have:Total number of students = 25
Number of Students using FB = 15
Number of Students using T = 12
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To get the number of students that are using both of the 2 apps you'll have
n = (15 + 12) - 25
n = 27 - 25
n = 2
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To get the number of students who are using Twitter only you'll have:
t = 12 - n
t = 12 - 2
t = 10