Math 10 Summative Test 2

When a distribution is divided into 4 equal parts, what do you call each score point that describes it?

• A. decile

• B. interquartile range

• C. percentile

• D. quartile

Which of the following should be done in computing for the mean?

• A. Add the values of all entries and divide by the number of entries.

• B. Find the number with most occurrence or highest frequency.

• C. Arrange the scores in ascending order and locate the middle value.

• D. Arrange the data in ascending order and use the formula in looking for the position of the certain quantile.

In a group of 45 examinees taking the 40-item test, Chris obtained a score of 30. Which interpretation below is correct about Chris' score?

• A. it belongs to the 55th percentile

• B. it is below the 3rd decile

• C. it is at the upper quartile

• D. it is below the 50th percentile

If you want to calculate a percentile position, how many equal parts is the distribution divided?

• A. 4

• B. 10

• C. 50

• D. 100

When does interpolation take place in finding the measures of position?

• A. if the quantile position is unknown

• B. if quantile position is a whole number

• C. if quantile position is a decimal number

• D. if it is difficult to find the quantile position

What do you call the partition of values brought by dividing data into four, ten and hundred parts of equal sizes?

• A. classes

• B. distribution

• C. quantiles

• D. range

The following are the scores of 11 students in the 50-item Mathematics quiz: 33, 24, 25, 35, 37, 46, 29, 30, 31, 33, 47. If the median is 33, what is its decile rank?

• A. 3rd decile

• B. 4th decile

• C. 5th decile

• D. 6th decile

What position should you locate if you want to measure the median in a set of data divided into ten equal parts?

• A. 7th decile

• B. 6th decile

• C. 5th decile

• D. 4th decile

What percent of the data is less than or equal to the first quartile of the distribution?

• A. 10%

• B. 15%

• C. 20%

• D. 25%

Which of the following positions is equal to the 20th percentile?

• A. D2

• B. D20

• C. P80

• D. Q2