Measures of Position for Ungrouped Data

Given the following data set: 20, 22, 23, 26, 29, 30, 30, 33, 35, 40. What is the second quartile or median?

• 29

• 29.5

• 30

• 30.5

Find the 5th decile for the following data set: 7, 9, 13, 4, 18, 3, 9, 10, 15, 8, 2, 6, 9.

• 4

• 5

• 8

• 9

Find the first quartile for the following data set: 7, 9, 13, 4, 18, 3, 9, 10, 15, 8, 2, 6, 9.

• 4

• 5

• 6

• 7

The scores of 7 students in mathematics seatwork are 3, 4, 4, 6, 7, 7, 8. What is the first quartile score?

• 3

• 4

• 5

• 6

The scores of 7 students in mathematics seatwork are 3, 4, 4, 6, 7, 7, 8. What is n?

• 4

• 5

• 6

• 7

The scores of 7 students in a mathematics seatwork are 3, 4, 4, 6, 7, 7, 8. What is the median?

• 4

• 5

• 6

• 7

What measure of position divides the distribution into 100 equal parts?

• Decile

• Percentile

• Percentile Rank

• Quartile

How many percent corresponds to P₂₅?

• 10%

• 25%

• 50%

• 60%

If P₉₀ is equal to 87. 33, then that means

• 10% of the students got a score of 87. 33.

• 90% of the students got a score of 87. 33

• 90% of the students got a score less than or equal to 87. 33.

• 10% of the students got a score less than or equal to 87. 33.

If P₂₅ is equal to 59. 14, then that means

• 25% of the students got a score less than or equal to 59. 14.

• 25% of the students got a score equal to 59. 14.

• 25% of the students got a score 59. 14 above.

• 25% of the students got a score at most 59. 14