Q4-Lesson 1: Quartiles of Ungrouped Data

The mean is equal to the 2nd quartile.

• True

• False

What is the value in the data set such that 25% of the data are less than this value and 75% of the data set is greater than this value?

• Lower Quartile

• Upper Quartile

• Lowest Score

• Highest Score

In computing for the upper quartile, if U falls halfway between two integers, round __________.

• Up

• Down

The marks obtained by students in a Math class are the following: 25, 8, 37, 16, 45, 40, 29, 12, and 42. What is the lower quartile value?

• 16

• 29

• 37

• 40

The marks obtained by students in a Math class are the following: 25, 8, 37, 16, 45, 40, 29, 12, and 42. What is the upper quartile value?

• 16

• 29

• 37

• 40

What could be the correct interpretation of the upper quartile value in question number 5?

• It means that seventy-five percent of the scores are less than or equal to 37.

• It means that seventy-five percent of the scores are greater than or equal to 37.

• It means that seventy-five percent of the scores are less than or equal to 40.

• It means that seventy-five percent of the scores are greater than or equal to 40.

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The following are the grades of Grade 7 students in their Filipino subject: 86, 75, 90, 83, 87, 78, 94, 91, 97, and 82. What is the median?

• 86

• 86.5

• 87

• 87.5

The ___ are values that divides the data set or distribution into four equal parts.

• Quartiles

• Measures of Position