Name
Date
Program
Score
Activity 4.3 Central Tendency and Variability Measures
Direction: Solve the following problems as indicated.
1. USTP employees have the following monthly dues in thousand pesos to their cooperative: 10,
40, 5, 20, 10, 25, 50, 30, 10, 5, 15, 25, 50, 10, 30, 5, 25 and 45. Find the mean, median and mode.
2. Three students are named finalists in the search for A-1 Student of the Year. The evaluation
papers revealed the following scores of the students in five different areas: Solve for the range
and variance.
Student A
97
92
96
95
90
Student B
94
94
92
94
96
Student C
95
94
93
96
92
3. The number of incorrect answers on a true-or-false mathematics proficiency test for a random
sample of 20 students was recorded as follows: Solve for the standard deviation.
3
3
5
6
1
2
1
4
4
5
1
3
2
5
4
4
5
1
2
3
4. Which group is the most heterogeneous?
Group I scores
100
123
122
150
146
141
132
132
Group II scores
102
102
132
154
124
136
25
135
Group III scores
150
120
130
114
112
105
136
104
