MGHS-MATH7-LT-LOVE

What is a set?

• A set refers to a collection of different objects

• A set a well-defined collection of distinct objects

•  A set is a collection of objects following a certain order

• A set is a collection of distinct objects with similar properties.

What do you call a set that has no elements?

• cardinality

• finite

• infinite

• null

What do you call the number of elements in a set?

• cardinality

• elements

• members

• null

Which of the following is a symbol for elements?

• { }

• { }

• {e,f,g}

• {a,b,c,h,i}

• {a,b,c,e,f,g,h,i}

• { }

• {e,f,g}

• {a,b,c,h,i}

• {a,b,c,e,f,g,h,i}

A survey was conducted among 80 persons about the food they usually order in a restaurant. The following was the result of the survey: 28 answered salad, 45 answered pasta, and 15 answered both. How many people usually order salad only?

• 13 people

• 22 people

• 30 people

• 67 people

 Refer to the Venn diagram on the left side.

It shows the food preference of 100 junior school in a public school.

How many students prefer to eat Hamburger only?

• 12

• 36

• 24

• 64

 Refer to the Venn diagram on the left side.

It shows the food preference of 100 junior school in a public school.

How many students prefer to eat French fries only?

• 12

• 36

• 24

• 64

 Refer to the Venn diagram on the left side.

It shows the food preference of 100 junior school in a public school.

How many students prefer to eat both French fries Hamburger?

• 12

• 36

• 24

• 64