๐ Understanding the Probability Scale
The probability scale is a way to measure how likely an event is to occur. It ranges from 0 (impossible) to 1 (certain), with values in between representing different degrees of likelihood. Here's a quick rundown:
- ๐ซ 0 (Impossible): The event will not occur.
- ๐ Close to 0: Very unlikely to occur.
- ๐งฎ 0.5 (Equally Likely): The event has a 50% chance of occurring.
- ๐ Close to 1: Very likely to occur.
- โ
1 (Certain): The event will definitely occur.
๐งฎ Quick Study Guide
- ๐ซ Probability ranges from 0 to 1.
- ๐ข $Probability = \frac{Number \ of \ favorable \ outcomes}{Total \ number \ of \ possible \ outcomes}$
- ๐ก Probability of 0 means impossible.
- โ
Probability of 1 means certain.
- โ๏ธ A probability of 0.5 means an even chance.
๐งช Practice Quiz
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Question 1: What is the probability of the sun rising tomorrow?
- A) 0
- B) 0.5
- C) Close to 1
- D) 1
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Question 2: What is the probability of rolling a 7 on a standard six-sided die?
- A) 0
- B) 1/6
- C) 1/2
- D) 1
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Question 3: What is the probability of flipping a coin and getting heads?
- A) 0
- B) 0.25
- C) 0.5
- D) 1
-
Question 4: What is the probability of drawing a red card from a standard deck of 52 cards?
- A) 1/4
- B) 1/2
- C) 1/13
- D) 1
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Question 5: What is the probability of a randomly selected person being alive?
- A) 0
- B) Close to 0
- C) Close to 1
- D) 1
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Question 6: What is the probability of winning the lottery without buying a ticket?
- A) 0
- B) Close to 0
- C) 0.5
- D) Close to 1
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Question 7: What is the probability of a fair coin landing on either heads or tails?
- A) 0
- B) 0.25
- C) 0.5
- D) 1
Click to see Answers
- C
- A
- C
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- C
- A
- D