Quiz Measure of Ungrouped and Group Data

1) How many students were all involved in the survey?

• 30

• 40

• 50

• 60

2) What is the size of the class interval?

• 3

• 4

• 5

• 6

3) What is the Lower Boundary of the class interval where 𝑄3

is included?

• 10.5

• 15.5

• 20.5

• 25.5

4) Which of the following is the 𝐷4

class?

• 1-5

• 6-10

• 7-15

• 16-20

5) What is the <cf of the class interval where 𝑄1

is included?

• 1

• 9

• 24

• 34

6) What does it mean if 𝑄1

is 11.67?

• 25% of the students have at least 11 active android applications.

• 11 students have at least 25% of the active android applications.

• 11 students have at most 25% of the active android applications.

• 25% of the students have at most 11 active android applications.

7) What is the 𝐷4

of the distribution?

• 14.17

• 15.17

• 16.17

• 18.17

8) What is the 𝑃80

of the distribution?

• 16.1

• 22.81

• 23.81

• 25.5

9) What does it mean if 𝑃65

is 19.75?

• 19% of the students have less than or equal to 65 active android

  applications.

• 19% of the students have more than or equal to 65 active android

  applications.

• 65% of the students have less than or equal to 19 active android

  applications.

• 65% of the students have more than or equal to 19 active android

  applications.