Online Exam - Desklib

ONLINE EXAM

TABLE OF CONTENTS
PART A...........................................................................................................................................3
QUESTION 1..................................................................................................................................3
I....................................................................................................................................................3
II...................................................................................................................................................4
III.................................................................................................................................................4
IV.................................................................................................................................................5
V..................................................................................................................................................5
VI.................................................................................................................................................6
PART B...........................................................................................................................................7
QUESTION 3..................................................................................................................................7
I....................................................................................................................................................7
II...................................................................................................................................................7
III.................................................................................................................................................8
IV.................................................................................................................................................8
QUESTION 4..................................................................................................................................8
Mean............................................................................................................................................9
Mode............................................................................................................................................9
Median.........................................................................................................................................9
Range.........................................................................................................................................10
Standard deviation.....................................................................................................................10

PART A
QUESTION 1
I.
a.
300/ (82 + 62) (3*2 + 2)
300/ (8*8 + 6*6) (3*2 + 2)
300/ (64 + 36) (6 + 2)
300/ (100) (8)
300/ (800)
0.375
b.
(400 / 202) (625 / 125)
(400/ 20 * 20) (5)
(20/ 20) (5)
(1) (5)
5
c.
810 / 9 (5*5-5) – 200
90 (5*5-5) – 200
90 (25 – 5) – 200
90 (20) – 200
1800 -200
1600
d.
2* [502 / (2*54)]
2*[50*50/ (2*5*5*5*5)]
2* [10*10/ 2*5*5]
2* [1*10/ 5]
2* [2]
4
e.
3

[144/ (10+8)] / 2+10-2+ [(52*2)2]
[144/ 18]/ 12-2+ [(5*5*2)2]
[8]/ 10 + [(50)2]
0.8+ 100
100.8
II.
a.
(-44) * (-4)
176
b.
33 – (-3)
33 + 3
36
c.
(-72) / 12 – (-5)
-6 / 12 + 5
-0.5 + 5
4.5
III.
a.
3/8 + 1/3
(9+8) /24
17/24
0.708
b.
5/8 – 1/5
(25 – 8)/40
17/ 40
0.425
c.
5(1/2) + 3(1/4)
4