Review Measures of Position for ungrouped data

Which of these fractiles divides the data set into four equal parts?

• Decile

• Median

• Percentile

• Quartile

The data shows the score 0f 11 students in Mathematics short quiz.

1, 2, 3, 4, 5, 5, 6, 7, 8, 8, 9

Find Q₂.

• 4

• 5

• 5.5

• No asnwer

The data shows the score 0f 11 students in Mathematics short quiz.

1, 2, 3, 4, 5, 5, 6, 7, 8, 8, 9

Find Q₃.

• 7

• 8.5

• 8

• No answer

The data shows the score 0f 11 students in Mathematics short quiz.

1, 2, 3, 4, 5, 5, 6, 7, 8, 8, 9

Find D₆.

• 6

• 6.2

• 6.5

• 6.8

If a data set consists of 24 scores, which position is the median?

• 5^th

• 10^th

• 12^th

• 12.5^th

In the set of scores: 14, 17, 10, 22, 19, 24, 8, 12, and 19,

the median score is _______.

• 14

• 17

• 19

• 22

In a 70-item test, Melody got a score of 50 which is the third quartile.

This means that:

• She got the highest score.

• Her score is higher than 25% of her classmates.

• She surpassed 75% of her classmates.

• Seventy-five percent of the class did not pass the test.

Mel’s score in a 75 - item test was the median score.

What is his percentile rank?

• 50^th

• 35^th

• 75^th

• 25^th

consider the score distribution of 15 students given below:

72 , 73 , 74 , 74 , 77 , 79 , 79 , 79 , 80 , 81 , 82 , 82 , 83 , 86 , 87

The median score is:

• 80

• 82

• 73

• 79

consider the score distribution of 15 students given below:

72 , 73 , 74 , 74 , 77 , 79 , 79 , 79 , 80 , 81 , 82 , 82 , 83 , 86 , 87

The P80 score is:

• 83.8

• 84

• 84.8

• 85