UNIVERSITY OF SAINT ANTHONY
(Dr. Santiago G. Ortega Memorial)
City of Iriga 4431, Philippines
SCHOOL OF GRADUATE STUDIES AND RESEARCH
STATISTICAL METHOD (EDUC 204)
ACTIVITY NO. 3
Name __________________________________________________
Answer the following questions: (Note: Please show your solutions.)
Mean
Find the mean of the following sets of values:
1. 32, 57, 39, 85, 74, 14, 45, 62, 21, 19
2. 84, 93, 57, 71, 94, 77, 89, 78, 61, 93, 72, 87, 63, 60, 55, 72, 68, 80, 56, 68
Median
Find the median of the following data:
3. 48, 27, 39, 49, 20, 21, 28, 38
4. 49, 10, 19, 54, 80, 15, 16
5. 50, 12, 17, 3, 14, 5, 8, 7, 15
Mode
Find the mode of the following data:
6. 51, 12, 8, 4, 8, 1, 8, 9, 11, 9, 10, 12, 8
7. 52, 15, 22, 17, 19, 22, 17, 29, 24, 17, 15
8. 53, 1, 7, 2, 4, 5, 9, 8, 3
9. Statistics exam scores for 20 students are as follows: 50; 53; 59; 59; 63; 63; 72; 72; 72;
72; 72; 76; 78; 81; 83; 84; 84; 84; 90; 93
10. The number of books checked out from the library from 25 students are as
follows:0; 0; 0; 1; 2; 3; 3; 4; 4; 5; 5; 7; 7; 7; 7; 8; 8; 8; 9; 10; 10; 11; 11; 12; 12
11.-13. Mean and Median
A survey of all the 110 firms in a small state was carried out to find the number of people employed
at each. The results are shown in the below table:
Number of Employees
1 – 10
11 – 20
21 – 30
31 – 40
41 – 50
Frequency
32
34
14
12
18
Find the mean and median of the number of people employed at each firm.
Note: Please submit your answers to michellemagistrado28@gmail.com on or before April
26, 2022, 12:00 noon.