STATISTICS

1. Computation
For Frequency
Distribution,
and Weighted
Mean
Computation
For Frequency
Distribution,
and Weighted
Mean

2. Formula: Frequency Distribution
P = F x 100
N
Where:
P = Percentage
F = Frequency
N = Total Number of Respondents

3. Example:

4. Example:

5. Formula: Frequency Distribution
In Terms of Age
P = 17 x 100
25
= 1700
25
= 68%
P = 8 x 100
25
= 800
25
= 32%
100%

6. Formula: Frequency Distribution
In Terms of Gender
P = 9 x 100
25
= 900
25
= 36%
P = 16 x 100
25
= 1600
25
= 64%
100%

7. Solve for the frequency and percentage distribution of the following
data.
FLAVOR F %
MATCHA 45
OKINAWA 15
TOTAL 60

8. WM = ∑fx
N
Where:
WM = Weighted Mean
∑ = Summation Sign
F = Frequency obtained from the # of Responses
X = Weight of each Value of the Scale
N = Total Number of Respondents
Formula: Weighted Mean

10. WM = 4 (18), 3 (6), 2(1)
25
= 71 + 18 + 2
25
= 92
25
= 3. 68
V.I = Highly Recommended
Indicator Number 1

11. Scale Mean Verbal Interpretation
5 4.2 – 5 Very Satisfied
4 3.4 - 4.1 Satisfied
3 2.5 – 3.3 Neutral
2 1.8 – 2.4 Unsatisfied
1 1.0 – 1.7 Very Satisfied
5 4 3 2 1 Weighted Mean Interpretation
25 10 0 0 1
5
0 25 0 25 0
10 11 12 10 7
30 10 10 0 0
Total

12. WM = 4 (24), 3 (1)
25
= 96 + 3
25
= 99
25
= 3. 96
V.I = Highly Recommended
Indicator Number 2

13. WM = 4 (16), 3 (8), 2 (1)
25
= 64 + 24 + 2
25
= 90
25
= 3. 6
V.I = Highly Recommended
Indicator Number 3

14. WM = 4 (20), 3 (5)
25
= 80 + 15
25
= 95
25
= 3. 8
V.I = Highly Recommended
Indicator Number 4

15. WM = 4 (24), 3 (1)
25
= 96
25
= 3. 84
V.I = Highly Recommended
Indicator Number 5

16. Solve the following data:
CIVIL STATUS FREQUENCY PERCENTAGE
SINGLE 37
MARRIED 43
TOTAL 80
Scale Mean Verbal Interpretation
5 4.2 – 5 Very Satisfied
4 3.4 - 4.1 Satisfied
3 2.5 – 3.3 Neutral
2 1.8 – 2.4 Unsatisfied
1 1.0 – 1.7 Very Satisfied
Frequency and percentage distribution.
Weighted mean.
5 4 3 2 1 Weighted Mean Interpretation
0 10 25 12 3
13 11 12 10 4
5 15 15 5 1
0

17. Thank
You!
Thank
You!