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Calculate the probability of getting at least two tails when flipping three coins.
Press to flip
P(at least two tails) = 4/8 = 1/2 = 0.5 or 50%
Calculate the probability of getting at least one head when flipping two coins.
P(at least one head) = 3/4 = 0.75 or 75%
What is the sample space for flipping a fair coin?
{H, T}
Calculate the probability of getting a number greater than 3 when tossing a six-sided die.
P(greater than 3) = 3/6 = 1/2 = 0.5 or 50%
Define sample space.
Sample space is the set of all possible outcomes that can occur in a situation.
What is the probability range for any event?
0 ≤ P(A) ≤ 1
What is the probability of getting a number less than or equal to 5 when tossing a six-sided die?
P(less than or equal to 5) = 5/6 ≈ 0.833 or 83.3%
Convert the probability P(A) = 0.3 to a percentage.
30%
What is the probability of getting a 2 when tossing a six-sided die?
P(getting a 2) = 1/6 ≈ 0.167 or 16.7%
Calculate the probability of getting either a 3 or a 5 when tossing a six-sided die.
P(getting a 3 or a 5) = 2/6 = 1/3 ≈ 0.333 or 33.3%
What does it mean if P(A) = 1?
The event will always happen.
What does it mean if P(A) = 0?
The event cannot happen.
Provide the sample space for flipping two coins.
{HH, HT, TH, TT}
What is the formula for calculating the probability of an event?
Probability of an event = (Number of favorable outcomes) / (Total number of possible outcomes)
What is the probability of getting a number at most 4 when tossing a six-sided die?
P(at most 4) = 4/6 = 2/3 ≈ 0.667 or 66.7%
What is the probability of getting exactly one tail when flipping three coins?
P(exactly one tail) = 3/8 = 0.375 or 37.5%
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