Math 10 Quarter 4 Review

These are the score points which divide a distribution into four equal parts.

• Decile

• Percentile

• Quartile

• Quintile

Which of the following DOES NOT belong to the group?

• n/2

• 50n/100

• 3n/4

• 5n/10

What is the upper quartile in the score distribution:

85      74      89      81      84      79      82      75

88      83      81      84      81      76      76

• 76

• 84

• 88

• 81

What is the median in the score distribution:

85      74      89      81      84      79      82      75

88      83      81      84      81      76      76

• 82

• 81

• 75

• 84

Find the 7th decile of the following test scores of a random sample of ten (10) students using linear interpolation: 15, 20, 23, 18, 40, 42, 28, 28, 35, 33.

• 19.6

• 20.9

• 30.5

• 34.4

Find the 85^th percentile of 22, 5, 12, 16, 31, 25, 30, 39, 32, 33, 18.

• 31.2

• 33.2

• 33.4

• 34.2

If your percentile score in a mathematics test is 99, should you be happy?

• Yes, because I got the highest score.

• No, because I only surpassed 12% of my classmates.

• No, because 88% of my classmates performed better than me.

• Yes, because only 12% of my classmates got a score higher than my score.

Mel’s score in a 75-item test was the median score. What is his decile rank?

• 2

• 5

• 7

• 9

• 3% of the scores are less than or equal to 20

• 30% of the scores are less than or equal to 20

• 70% of the scores are less than or equal to 22

• 70% of the scores are less than or equal to 20

Which of the following formulas is used to locate the upper quartile?