Math Mania

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Questions and Answers

Which of the following is an example of a prime number?

  • 12
  • 30
  • 42
  • 17 (correct)

What is the result of subtracting 7.3 from 12.6?

  • 6.1
  • 4.3
  • 19.9
  • 5.3 (correct)

What is the mode of the following set of numbers: 4, 5, 6, 6, 7, 8, 8, 9?

  • 4
  • 7 (correct)
  • 8
  • 6

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Study Notes

Numbers and Operations

  • A prime number is a whole number greater than 1 that has exactly two factors: 1 and itself.
  • The result of subtracting 7.3 from 12.6 is 5.3.

Statistics and Data

  • The mode of a set of numbers is the value that appears most frequently in the set.
  • The mode of the set {4, 5, 6, 6, 7, 8, 8, 9} is 6 and 8, as both values appear twice, more than any other value in the set.

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