Mathematics Grade 10 Quarterly Exam

These are nine score points which divide a distribution into one hundred equal parts so that each part represents 1/10 of the data set.

• Quartiles

• Percentiles

• Deciles

• Quantiles

Which of the following is also equal to middle quartile?

• P5

• D5

• P50

• both B and C

In a 50-item test, Czian William got a score of 30 which is the third quartile. This means that _

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

• She surpassed 75% of her classmates.

• Her score is higher than 25 of his classmates.

• She got the highest score.

Which of the following gives the formula for quartile of grouped data?

The median score is also the ___________.

• 75th percentile

• 5th decile

• 3rd decile

• 1st quartile

In the set of scores 10, 12, 8, 2, 10, 13, 15, 11, 8, 7, and 9, the median score is ______.

• 9

• 10

• 8

• 11

Using the set of scores in number 6, what is the lower quartile?

• 10

• 7

• 8

• 2

Find the height that corresponds to 65th percentile using linear interpolation.

• 67

• 68

• 67

• 69

Find the height that corresponds to 7th decile using linear interpolation.

• 67.3

• 68.3

• 68.7

• 69.5

Find the height that corresponds to upper quartile?

• 70

• 68

• 67

• 69