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T or F: When an event happens every biennium, it occurs twice a year.

User Cat Pants
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Final answer:

False, an event happens every biennium means it occurs once every two years, not twice a year. The terms related to events (A, B, T) involve outcomes of two, even numbers, and numbers less than four. The Earth's magnetic field reversal is a rare event occurring approximately every 200,000 years.

Step-by-step explanation:

The statement that an event occurs twice a year when it happens every biennium is false. The term 'biennium' refers to a two-year period, not a semi-annual event. Therefore, an event that occurs every biennium actually takes place once every two years.

Regarding the information provided:

  • Event T = the outcome is two.
  • Event A = the outcome is an even number.
  • Event B = the outcome is less than four.
  • The complement of A would be any outcome that is not an even number.
  • A GIVEN B is the probability of getting an even number given that we know it is less than four.
  • B GIVEN A is the probability of getting a number less than four given that it is even.

As for the magnetic field fact, the Earth's magnetic field flipping direction is a fascinating and fairly rare geological event that takes place approximately every 200,000 years.

User Halacs
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