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  • Topic: UCI race classifications, Median, Mode
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  • Published : November 2, 2012
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APPLIED SOCIAL SCIENCE
MEI 2012

ABPD 2103

PERSONALITI

NO. MATRIKULASI : 880916045857001
NO. KAD PENGNEALAN : 880916045857
NO. TELEFON: 012 2444477
E-MEL: sakifkhan@gmail.com

PUSAT PEMBELAJARAN: MELAKA

CONTENT

1.0 QUESTION 1
Q1 (a) Construct a cumulative frequency distribution
Q1 (b) Draw Cumulative Frequency Polygon
Q1 (c )
Q1 (d )

2.0 QUESTION 2
Q2 (a ) Type of variable
Q2 (b) Histogram
Q2 (c )
Q2 (d)
Q2 (e ) mean , mode , median

Question 1
a ) Construct a cumulative frequency distribution

Number of Cars| Frequency | Upper Boundary | Cumulative frequency | 15-19| 9| ≤19.5| 9|
20-24| 8| ≤24.5| 17|
25-29| 4| ≤29.5| 21|
30-34| 4| ≤34.5| 25|
35-39| 6| ≤39.5| 31|
40-44| 4| ≤44.5| 34|
45-49| 1| ≤49.5| 36|

b) Cumulative Frequency Polygon

c) Months does the dealer sell less than 20 cars is9 months

d) Percentage of months with more than 30 cars sold

= 15/ 36 (100%)
= 41.67 %

2.0 Question 2

Time ( hours ) | Frequency| Midpoint (x)| fx| fΧ²| Lb| Ub| 0-0.4| 2| 0.2| 0.4| 0.08| | 0.45|
0.5-0.9| 5| 0.7| 3.5| 2.45| 0.45| 0.95|
1.0-1.4| 19| 1.2| 22.8| 27.36| 0.95| 1.45|
1.5-1.9| 15| 1.7| 25.5| 43.35| 1.45| 1.95|
2.0-2.4| 10| 2.2| 22.0| 48.40| 1.95| 2.45|
2.5-2.9| 8| 2.7| 21.6| 58.32| 2.45| 2.95|
3.0-3.4| 5| 3.2| 16.0| 51.20| 2.95| 3.45|
3.5-3.9| 3| 3.7| 11.1| 41.07| 3.45| 3.95|
4.0-4.4| 2| 4.2| 8.4| 35.28| 3.95| 4.45|
4.5-4.9| 1| 4.7| 4.7| 22.09| 4.45| 4.95|
Total| 70| | 136| 329.6| | |

a ) Type of variable
Continuous Quantitative Variable

b ) Histogram

c ) percentage of teenagers who spent at least 1.0hour and at most 2.1 hours = 34 / 70 ( 100%)
= 48.57 %

d) Teenagers spent less than 30 minutes at cybercafé daily is 2 person

e)
Mean = Σfx / Σf
=13670
= 1.94
Mode...
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