Measures of Data

What is the value of the summation of frequency?

• 84

• 86

• 89

• 90

The score points which divides the distribution in four equal parts.

• Decile

• Quartile

• Percentile

• Median

The median score is also the

• 75th percentile

• 5th decile

• 3rd decile

• 1st quartile

The lower quartile is equal to

• 50th percetile

• 25th percentile

• 2nd decile

• 3rd quartile

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

• she got a highest score

• her score is higher than 25% of her classmates

• twenty-five percent of the students are 16 years old

• seventy-five percent of the class did not pass the test

Mhel's score in a 75 item test was the median score. What is his percentile rank?

• 35th

• 50th

• 25th

• 75th

In a 100 item test, the passing mark is the 3rd quartile. What does it imply?

• The students should answer at least 75 items correctly to pass the test.

• The students should answer at least 50 items correctly to pass the test.

• The students should answer at most 75 items correctly to pass the test.

• The students should answer at most 50 items correctly to pass the test.

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

• 17

• 15

• 16

• 13

How many percent corresponds P₂₅ if you will interpret it?

• 10%

• 25%

• 50%

• 60%

Identify the median for the given data?

23, 34, 27, 7, 30, 26, 28, 31, 34

• 23

• 28

• 31

• 34