Measures of Position

The scores of students in mathematics seatwork are: 7, 4, 3, 6, 7, 4, 8. Find the median.

• 4

• 6

• 7

• 8

The lower quartile is equal to _____.

• 25th Percentile

• 50th Percentile

• 2nd Decile

• 2nd Quartile

Q₃ is the 3^rd quartile means that

• 25% of the observation lie below this value.

• 30% of the observation lie below this value.

• 50% of the observation lie below this value.

• 75% of the observation lie below this value.

9, 12, 19, 10, 26, 24, 17, 15, 30, 17, 5, 9, 15, 8, 17, 12, 15, 20, 21

What is the interquartile of the data?

• 5

• 10

• 15

• 20

It is a measure of position that divides the distribution into ten equal parts.

• Quartile

• Decile

• Precentile

• Median

In an achievement test's results, the data shows that the 9th decile is equal to 30. What does it mean?

• 10% of the scores lie below 30.

• 90% of the scores are equal or greater than 30.

• The student got 90/100.

• The upper 10% of the scores are equal to or greater than 30.

What is the IQR if Q1 = 45 and Q3 = 65

• 20

• 25

• 30

• 35

Identify the upper quartile for the given data? 23, 34, 27, 7, 30, 26, 28, 31, 34

• 30.5

• 31.5

• 32.5

• 33.5

A type of data that has been sorted into groups called classes.

• Grouped Data

• Ungrouped Data

• Frequency Table

• Raw Data

In a cumulative frequency distribution table, is being referred by the 'number (quantity) of data in each class interval'?

• Class boundary

• Frequency

• Lower boundary

• Class interval