How likely is it? Learn to describe chance!
Impossible: Will never happen (e.g. rolling a 7 on a standard dice)
Unlikely: Could happen but not often
Even chance: Equally likely to happen or not (e.g. flipping heads)
Likely: Probably will happen
Certain: Will definitely happen (e.g. rolling a number < 7)
Impossible = 0, Even chance = 0.5, Certain = 1
The closer to 1, the more likely!
Coin: 2 outcomes — Heads or Tails. P(heads) = 1/2 = 0.5
Dice (1–6): 6 outcomes. P(any one number) = 1/6
Spinner: Number of equal sections = total outcomes. P(one section) = 1/n
List ALL possible results to count total outcomes.
Dice outcomes: {1, 2, 3, 4, 5, 6} → 6 total
P(even) = 3/6 = 1/2
Which is more likely: rolling a 6 or rolling an even number?
P(6) = 1/6 | P(even) = 3/6 = 1/2
1/2 > 1/6, so rolling even is more likely.
Describe the chance of picking a red ball from a bag of 5 red and 1 blue.
A dice is rolled. P(number < 3) = ?
A spinner has 4 equal sections. How many equally likely outcomes?
A spinner has 4 equal sections. P(landing on one section) = ?
Is P = 3/4 more likely or less likely than P = 1/4?
Enter: 0=impossible, 1=unlikely, 2=even chance, 3=likely, 4=certain
Enter just the numerator for each probability.
Count the total equally likely outcomes.
Give probability as a decimal (to 3 decimal places where needed).
Enter 1 if first event is more likely, 0 if second is more likely, 2 if same.