ASSIGNMENT QUESTION
QUESTION 1
Consider program of obtaining blood groups from a simple random sample of 100 school leavers around Klang Valley as shown in Table 1.
Table 1/Jadual 1
Male
B AB A A B A B B AB A A B O O AB O
O A B O O B AB B A A B B AB A A B
AB A B O O B AB B A B O O O B A B
A O
Female
AB AB A B B A B B AB A A B AB O AB O
O A B O B B AB B A A B B AB A A B
AB A B O O B AB B A B O B O B A B
A AB
a) Prepare a multiple frequency table for blood groups of both genders.
b) Using your frequency table, draw a multiple bar chart to represent the information.
c) Make a comparison between genders for the following aspects:
Most common blood group
Minimum frequency of blood group
Maximum frequency of blood group.
QUESTION 2
Data in Table two represents the lifespan (in thousands Kilometers) for a sample of 34 tyres used in a factory.
Table 2
|
56.1
|
56.9
|
58.2
|
57.0
|
57.6
|
56.5
|
56.6
|
56.4
|
58.0
|
|
56.7
|
56.8
|
58.9
|
57.8
|
57.6
|
56.8
|
56.8
|
56.7
|
58.9
|
|
56.8
|
61.9
|
54.5
|
60.2
|
55.3
|
58.0
|
56.5
|
62.2
|
56.2
|
|
58.7
|
54.8
|
57.8
|
61.0
|
57.8
|
59.2
|
60.3
|
|
|
Based on the data,
a) construct a frequency distribution. Take 1.2 as a class width and 54.0 as a lower limit of the first class.
b) draw a histogram and frequency polygon.
QUESTION 3
Refer to the frequency table in Question (2a), calculate the following:
a) mean
b) mode
c) standard deviation
QUESTION 4
Table 3 shows the frequency distribution of the weight (in kg) of 65 rugby players of a university college.
Table 3
|
Weight (kg)/
Berat (kg)
|
Frequency/ Kekerapan
|
|
60 - 64
|
2
|
|
65 - 69
|
x
|
|
70 - 74
|
8
|
|
75 - 79
|
4x
|
|
80 - 84
|
5x
|
|
85 - 89
|
3
|
|
90 - 94
|
2
|
Determined:
a) the value of x
b) first quartile
c) median
d) third quartile.
e) inter-quartile range.