General Science
Faculty of Engineering
Majmaah University
Stat-101
First Mid Term
Time: 75 Minutes
:‫اجملموعة‬
Question-1: (4 Marks)
:‫اإلسم‬
Put the correct alphabetic answer in the front box for each of the following
1- Derivation of statistical theorems belongs to
(A) Applied statistics
(B) Mathematical statistics
(C) Descripitive statistics
(D) Inferential statistics
2- Using the sample results to make decisions about a population belongs to
(A) Applied statistics
(B) Mathematical statistics
(C) Descripitive statistics
(D) Inferential statistics
3- A survey that includes the prices of all houses in Almajmaah belongs to
(A) Sample
(B) Member
(C) Descripitive statistics
(D) Population
4- A survey that includes every member of a population is
(A) Sample
(B) Member
(C) Census
(D) Population
5- A specific subject or object about which information is collected is called
(A) Sample
(B) Member
(C) Census
(D) Population
6- The value of a variable for an element is called
(A) Data set
(B) Qualitative variable
(C) Observation
(D) Discrete variable
7- A variable whose values are countable is called
(A) Data set
(B) Qualitative variable
(C) Observation
(D) Discrete variable
8- A variable that can not assume a numerical value is called
(A) Data set
(B) Qualitative variable
(C) Observation
(D) Discrete variable
Question-2: (4 Marks)
Draw a stem and leaf diagram for the data set:
{ 1, 2, 13, 14, 25, 26, 37, 38, 49, 40 }
1
Question-3: (12Marks)
The following table shows the marks of 10 students.
Class
Frequency
Boundaries
10-19
20-29
30-39
40-49
4
2
1
3
9.5 – 19.5
19.5 – 29.5
29.5 – 39.5
39.5 – 49.5
Mid
point
14.5
24.5
34.5
44.5
Relative
Frequency
0.4
0.2
0.1
0.3
Percentage Cumulative
Frequency Frequency
40
4
20
6
10
7
30
10
(a) Complete all enteries in the table.
(b) Draw a histogram.
(c) Draw a cumulative percentage frequency distribution.
(d) Draw an ogive for relative frequencies.
(e) Draw a pie chart if the grading is as follows:
10-19
20-29
30-39
40-49
D
C
B
A
2
(4 M)
(2 M)
(2 M)
(1 M)
(3 M)
3