Examples of Well-defined set.

Prime numbers

Students from a certain class

Mathematics teachers

Grade 9 students

Even numbers

Prime numbers

Students from a certain class

Mathematics teachers

Grade 9 students

Even numbers

{a character in a Disney film}

{a superhero of Marvel Cinematic Universe}

{a flavored drink}

{an indigenous people of the Philippines}

{a musical instrument}

For the first example, {colors of the rainbow} includes only seven colors particularly red, orange, yellow, green, blue, indigo, and violet which makes it a well defined set. The second example is also a well defined set since {even numbers between 1 to 10} includes only the number 2, 4, 6, and 8.

a character in a Disney film}

{a superhero of Marvel Cinematic Universe}

{a flavored drink}

{an indigenous people of the Philippines}

{a musical instrument

1.) All the month in a year.

2.) prime numbers less than 20

3.)Even numbers less than 30

4.)Days in a week.

5.)All the colors in the rainbow

1. F={apple, banana, orange}

2. A={avocado, kiwi, blueberries}

3. B={pineapple, watermelon,grapes}

4. C={guava, jackfruit}

5. D={cantaloupe, cherry, durian}

Step-by-step explanation:

(any set can have different cardinalities measurement of a set)

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