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Session 2 Quiz

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8 questions about Session 2: Probability: What Might Happen?. Get 6+ right to pass!

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1

What is probability?

  • A guarantee of what will happen
  • A measure of how likely something is to happen
  • A type of graph
  • The number of times something happened
2

What is the probability of rolling a 4 on a fair die?

  • 1/4
  • 1/6
  • 1/2
  • 4/6
3

What does 'equally likely' mean?

  • One outcome is guaranteed
  • All outcomes have the same chance of happening
  • The most common outcome
  • A 50-50 chance only
4

Can probability be negative?

  • Yes, for impossible events
  • No — probability is always between 0 and 1
  • Only in advanced math
  • Yes, for unlikely events
5

If you flip a coin 10 times and get 8 heads, is the coin unfair?

  • Definitely yes
  • Maybe — you need more flips to be sure since small samples are unreliable
  • Definitely no
  • It depends on the day
6

What makes a game fair?

  • The best player always wins
  • Each player has an equal probability of winning
  • It uses dice
  • Everyone has fun
7

What does '30% chance of rain' mean?

  • It will rain 30% of the day
  • In similar conditions, it rains about 30 out of 100 times
  • 30% of the area will get rain
  • It will definitely not rain
8

Why do unlikely events still happen?

  • They do not — unlikely events never happen
  • Because unlikely does not mean impossible; given enough opportunities, rare events occur
  • Only in movies
  • Due to magic