Mathematics Grade 10 4th Periodic Test

It is another method in finding the quantiles value if the position is a decimal number.

The Science activity scores of random Grade 10 students are 13,6,7,8,15,10,11 and 14. Find the value of the first quartile using Mendenhall and Sincich Method .

Using linear interpolation, find the lower quartile of the following scores in Mathematics: 7, 9, 10, 11, 12, 13, 15, 16.

Justine is an assistant manager in a certain company. His salary belongs to 8th decile. Should Justine will be happy about his salary or not?

Which on the following percentiles is equal to the third quartile?

• P20

• P25

• P50

• P75

Which percentile is equivalent to the first quartile ?

• 25th

• 50th

• 75th

• 100th

Which of the following measures of position divides a distribution into four equal parts?

• deciles

• percentiles

• quartiles

• probability

A MAPEH teacher recorded the height of 50 students. Based on the report Lisa's height is in the 70th percentile.(Asssume that the height of each student is different to each other.)If Lucy's in the 4th decile, how can you compare it with Lisa's height ?

• Lucy is shorter than Lisa.

• Lucy is taller than Lisa.

• Lisa is shorter than Lucy.

• They are both have the same height.

What percentage of the data is equivalent to 6th decile?

• 6%

• 20%

• 40%

• 60%

What do you call to the ninety-nine score points which divide a distribution into one hundred equal parts so that each part represents 1- 100 of the data set?

• deciles

• quartiles

• percentiles

• probability