Math Problem Statement
Solution
Let's analyze the events based on the outcomes given:
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Event A: No heads on the last two tosses
This event means that the last two tosses must be tails (TT). The possible outcomes for this event are:- TTT and HTT
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Event B: A tail on the last toss
This event means that the final toss must be a tail (T). The possible outcomes for this event are:- TTT, HTT, THT, HHT
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Event C: A head on each of the last two tosses
This event requires both of the last two tosses to be heads (HH). The possible outcomes for this event are:- THH and HHH
Now let's determine the probabilities. Since there are 8 possible outcomes and each is equally likely, the probability of each outcome is .
- Probability of Event A: 2 outcomes (TTT, HTT)
- Probability of Event B: 4 outcomes (TTT, HTT, THT, HHT)
- Probability of Event C: 2 outcomes (THH, HHH)
If you want more detailed explanations or have any questions, let me know.
Related Questions
- What is the probability of getting exactly two heads in three coin tosses?
- How would the probabilities change if the coin were biased?
- What if the coin was tossed four times—how would Event A change?
- How can we calculate the probability of getting at least one head in three tosses?
- What is the probability of getting heads in all three tosses?
Tip: In probability problems, always start by identifying the total number of possible outcomes, then match each event's conditions to these outcomes.
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Math Problem Analysis
Mathematical Concepts
Probability
Combinatorics
Formulas
Probability formula: P(Event) = Number of favorable outcomes / Total possible outcomes
Theorems
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Suitable Grade Level
Grades 9-12
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