Worksheets4th Quarter Periodical Test
Total questions: 27
Worksheet time: 30mins
What is the 25th percentile of the following data set: 12, 15, 20, 22, 25, 30?
15
20
22
25
If a student scored in the 90th percentile on a test, what does this indicate?
They scored higher than 90% of the students.
They scored lower than 90% of the students.
They scored exactly 90%.
They scored the average score.
Which of the following is true about percentiles?
They divide the data into equal parts.
They are always whole numbers.
They can be used to compare different data sets.
They are only applicable to grouped data.
In a data set of 50 students' scores, what is the position of the 40th percentile?
20th score.
40th score.
30th score.
10th score.
To find the 75th percentile, which formula is used?
P = (n + 1) * (75/100)
P = n * (75/100)
P = (n - 1) * (75/100)
P = n + (75/100)
What does the 50th percentile represent in a data set?
The highest score
The lowest score
The median
The mode
Which of the following data sets has a 90th percentile of 85?
70, 75, 80, 85, 90
60, 70, 80, 90, 100
50, 60, 70, 80, 85
80, 85, 90, 95, 100
what is the value of the lower boundary in the class interval 98-103?
97.5
97
96.5
96
What is the class interval in the given table?
7
6
5
4
Find the total frequency of the given table.
10
20
30
40
If you are going to to solve for the 65th percentile of the grouped data, what lower boundary are you going to use?
97.5
103.5
115.5
109.5
What cumulative frequency should be usedin the solving for the 45th percentile?
15
12
10
6
What is the 35th percentile?
101
102
103
104
What is the 73th percentile?
114.7
113.7
112.7
111.7
Given the following data 1, 2, 3, 4, 5, 5, 7, 8, 8, 9, 10, 10, 12, 14, 15, 15, 17, 19, 20. What is the value of the 2oth percentile of the given scores?
2
3
4
5
In the given data 1,2,3,4,5,5,7,8,8,9,10,10,12,14,15,15,17,19,20. What is the position of the 80th percentile ?
16
15
16.5
15.5
In the given data 1,2,3,4,5,5,7,8,8,9,10,10,12,14,15,15,17,19,20. Calculate 75th percentile?
16.5
17
16
15
When a distribution is divided into hundred equal parts, each score point that describes the disstribution is called what?
percentile
decile
quartile
median
If a student scores at he 90th percentile on a test, what does that mean?
they scored higher than 90% of the other students.
they scored lower than 90% of the other students.
they scored exactly 90%on the test.
they scored at the 10th percentile
What is the 0th percentile?
the median
the highest value
the lowest value
the average
Write the lower boundary of the score 46-50.
(a)
Write the lower boundary of the score 41-45.
(a)
What is the lower boundary for the scores 36-40?
(a)
What is the lower boundary of the scores 31-35?
(a)
What is the lower boundary fro the scores 26-30?
(a)
What is the lower boundary of the scores 21-25?
(a)
What is the cummulative frequency of the table?
(a)
