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WorksheetsSemi Finals
Total questions: 50
Worksheet time: 1hrs 22mins
Quartile, decile, and percentile are all considered as measures of______.
Central Tendency
Position
Variability
Skewness
In quartiles, median to be measured must lie in _____.
1st Quartiles
2nd Quartile
3rd Quartiles
4th Quartiles
Consider the following data:
15,13,6,5,12,22,50,18
Determine Q2
3
9
14
20
Find the 6th decile of the following scores:
5,6,8,12,16,17,20,22,25
5
8
12
17
Consider the following data and determine the 80th percentile:
15,15,15,17,20,30,35,45,60
24
29
40
54
Consider the following data and determine the 50th percentile
−4,−4,4,11,19,25
-4
-3.5
7.5
11
If a person earned a score higher than 35 persons in his class of 50 students, what his percentile rank?
30
55
70
95
Martha receives a salary in 7th decile. Should she be pleased with her salary?
Yes, because most of the employees receive the salary less than or equal hers.
No, because the salary is not sufficient to her needs.
Yes, because only 30% of the employees receiving salary greater than hers.
No, because 50% of the employees are receiving the same salary as hers.
The number of games won by a famous basketball team each year from the year 1999 to the year 2000:
20,20,25,30,35,35,35,45,45and50
Find
the difference of the lower quartile and the upper quartile of the data
set.
20
26
35
39
The owner of a supermarket
recorded the number of customers who came into his store each
hour in a day. The results were:
11,7,9,6,14,2,5,6,11,7and 8
Find the lower quartile and upper quartile from data.
6, 11
9, 12
11, 15
7, 10
What is the position of the middle quartile of an ordered data set of 17 values?
7th
8th
9th
10th
Percentile rank is also known as __________
Mean
Percentage
Scores
Median
Consider the following data and determine the 70th percentile 2.5,4.5,4.5,4.8,5.6,6.6,6.6,7.3
4.5
4.8
5.6
6.6
Consider the following data
and determine the 90th percentile:
0,0,0,0,0,100,100,100,100,1400
510
750
1270
1320
Consider the following data and determine the
35th percentile:
−15,−15,−33,−17,−30,−30, −20,−60,−45,−15
-30
-35
-40
-50
−15,−15,−33,−17,−30,−30, −20,−60,−45,−15
What is the mode?
-60
-45
-30
-15
What conclusion can you make about the given data:
"The 6th decile of the following scores: 5,6,8,12,16,17,20,22,25 is 17."
Almost all of the cases scored 17
60% of the cases scored below or equal to 17
60% of the cases scored above 17
Conclusion cannot be drawn from the obtained value.
The first quartile of the ages of 150 Grade 10 students is 16 years, what does it mean?
Most of the students are below 16 years old.
75% of the students are above 16 years old and above.
25% of the students are 16 years old.
50 of the students are younger than 16 years.
In an 80-item test, the passing mark is the 3rd quartile. What does it imply?
The students should answer at least 60 items correctly.
The students should answer at least 40 items correctly.
The students should answer at most 60 items correctly.
The students should answer at most 40 items correctly.
Using the table, what is the total frequency?
100
90
50
30
Using the table, what is the modal class interval?
64 - 67
56 - 59
44 - 47
20 - 23
Using the table, what is the class size?
4
5
10
12
Using the table, what is the frequency of the median class?
5
7
10
14
Using the table, find the mean
44.21
50.22
55.21
60.20
Using the table, which of the following is the median?
44.64
50.64
55.21
60.20
Using the table, which of the following is the mode?
44.5
45.5
48.5
50.5
Using the table, what is the lower boundary of the median class?
51.5
47.5
43.5
39.5
Using the table, compute for Q1
33.94
37.6
53.5
61.8
Using the table, find D7
22.6
41.5
50.7
67
The scores on a summative examination are presented below in decreasing order of magnitude. A score of 63 is approximately equivalent to a percentile rank of _____?
*see attached data
20
25
70
82
Complete this sentence:
“The kth percentile of a given distribution_______”
Is the score at which k% of the cases fall.
Is the score equal or above which k% of the cases fall.
Is the score equal or below which k% of the cases fall
Is the score above or below k% of the case fall
Using the table, compute for P95
94.50
95.72
97.72
98.33
Using the table, solve for Q2
73.77
79.51
80.81
81.10
Using the table, which cumulative frequency was used to compute P95
100
95
84
67
Using the table, which frequency is used to compute Q2
11
17
25
20
Using the table, how many members comprise Barangay Tunasan?
90
150
200
310
Using the table, how many people ages below or equal to 30?
37
39
76
116
Using the table, where do 40% of the members’ ages lie?
29.3
25.0
21.5
20.7
Using the table, what point divides the members into two groups of ages?
20.3
21.5
24.4
26.5
If a student discovers that his grade on a recent test was the 72nd percentile. If 90 students took the test, then approximately how many students received a higher grade than he did?
72
65
25
18
Given the table, in solving for the 60th percentile, the lower boundary to use is ________
39.5
34.5
29.5
24.5
Using the table, what cumulative frequency should be used in solving for the 35th percentile?
18
12
7
4
Using the table, The 45th percentile is equivalent to _________
35.6
37.0
36.0
36.5
Using the table, the 50th percentile is equivalent to ________
5th decile
median
2nd quartile
all of the these
Using the table, if Abby has a percentile rank of 40, what is her height?
1.53 m
1.66 m
1.75 m
1.83 m
Using the table, what is the percentile rank of Cathy if her height is 1.5 meters?
3
5
7
10
Using the table, what is the percentage of students shorter than Dora if she is 1.78 meters tall?
50%
63%
77%
84%
Using the table, how many students are taller than Erin if she stands 1.57 meters only?
12%
38%
62%
88%
Using the given data, what is the mean?
58
69
79
89
Using the given data, what is median?
78
75
71
68
