Math Problem Statement
A number cube is rolled three times, and an outcome is represented by a sequence like OEE (odd number on the first roll, even on the second, and even on the third). Given a set of outcomes and events in a table, determine which outcomes match each event. Then, calculate the probability for each event.
Solution
Let’s analyze the events and the outcomes listed for each event. Here’s a breakdown of each event and how it matches the outcomes provided:
-
Event A: An odd number on each of the first two rolls
- We need outcomes where both the first and second rolls are odd.
- Possible outcomes: and (only outcomes with odd numbers in the first two positions).
-
Event B: No even numbers on the first two rolls
- This means that both the first and second rolls must be odd, leaving us with the same outcomes as Event A.
- Possible outcomes: and .
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Event C: Exactly one odd number
- This requires only one "O" (odd) across all three rolls.
- Possible outcomes: , , and .
Next, let's assign the probabilities:
- Since there are 8 outcomes in total, each has a probability of .
- For each event, count the selected outcomes and multiply by to get the event's probability.
Here's how the table should look:
Event | Outcomes Selected | Probability |
---|---|---|
Event A | OOO, OOE | |
Event B | OOO, OOE | |
Event C | EOO, OEE, EEO |
Please let me know if you'd like a deeper breakdown or if you have specific questions!
Additional Questions:
- What would be the probability if we had four rolls instead of three?
- How would the outcomes change if we considered only even numbers?
- What is the total probability for mutually exclusive events in this scenario?
- Could we calculate the odds for getting two even numbers in any order?
- What if we wanted exactly two odd numbers?
Tip: When calculating probabilities, ensure each outcome has an equal chance to maintain accurate results.
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Math Problem Analysis
Mathematical Concepts
Probability
Combinatorics
Formulas
Probability of an event = (Number of favorable outcomes) / (Total number of outcomes)
Theorems
Basic Probability Theory
Suitable Grade Level
Grades 8-10