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Mathematics 7 Online
OpenStudy (anonymous):

How many ways are there to correctly answer 2 out of 7 true-or-false questions?

OpenStudy (paki):

2^7 = 128 @genesism97

OpenStudy (anonymous):

Thank you. can you solve this? @paki The Boor Foundation conducted a poll asking people to name the most serious problem facing the nation. Of the 600 people polled, 48% of the randomly selected people answered education. Find the margin of error for this sampling.

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