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Describe the following events as 'certai...

Describe the following events as 'certain', 'impossible' 'likely' or 'unlikely'.
You are in grade 7 and you will have 'Surprise Test' in 4 subjects today.

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To classify the event of having a surprise test in 4 subjects today as 'certain', 'impossible', 'likely', or 'unlikely', we can follow these steps: ### Step 1: Understand the Event We need to analyze the situation where a student in grade 7 has surprise tests in 4 subjects on the same day. **Hint:** Think about how often surprise tests can occur in a school setting. ### Step 2: Consider the Frequency of Surprise Tests In a typical school year, a student might have several subjects, and surprise tests are usually not very frequent. For example, if there are 6 subjects, having 4 surprise tests in one day is quite a lot. **Hint:** Reflect on how many subjects you have and how often tests happen. ### Step 3: Evaluate the Likelihood Given that there are 6 subjects and assuming that surprise tests are spread out over time, having 4 surprise tests in one day seems excessive. It is possible but not common. **Hint:** Compare this scenario with your own experiences in school regarding tests. ### Step 4: Classify the Event Based on the analysis, we can conclude that having 4 surprise tests in one day is very unlikely. While it is not impossible, it is not something that would happen frequently. **Hint:** Remember the definitions: - Certain means it will definitely happen. - Impossible means it cannot happen. - Likely means it is expected to happen. - Unlikely means it is not expected to happen. ### Final Conclusion The event of having surprise tests in 4 subjects today is classified as **unlikely**. ---
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ICSE-PROBABILITY-EXERCISE 19.1
  1. Describe the following events as 'certain', 'impossible' 'likely' or '...

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  2. Describe the following events as 'certain', 'impossible' 'likely' or '...

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  3. Describe the following events as 'certain', 'impossible' 'likely' or '...

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  4. List the outcomes when: a coin is tossed.

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  5. List the outcomes when: a die is rolled.

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  6. A dice is rolled. List the outcomes of the event A if: A is the eve...

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  7. A dice is rolled. List the outcomes of the event A if: A is the eve...

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  8. A die is rolled. List the outcomes of the event A if: A is the even...

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  9. A die is rolled. List the outcomes of the event A if: A is the even...

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  10. A die is rolled. Find the probability of getting: a 6.

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  11. A die is rolled. Find the probability of getting: a multiple of 3.

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  12. A die is rolled. Find the probability of getting: a multiple of 4.

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  13. A dice is rolled. Find the probability of getting: a number which i...

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  14. A die is rolled. Find the probability of getting: a composite numbe...

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  15. A die is rolled. Find the probability that: a number less than 4 sh...

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  16. A die is rolled. Find the probability that: a number more than 4 s...

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  17. A die is rolled. Find the probability that: a number greater than o...

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  18. A die is rolled. Find the probability that: a number less than equa...

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  19. A die is rolled. Find the probability that: a number divisible by 2...

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  20. A card is drawn from a pack of 52. Find the probability that: it is...

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