STA301 Assignment No. 1 Announcement

Deadline

Your Assignment must be uploaded/ submitted before or on

23:59 29^th 4^th Nov, 2010

STUDENTS ARE STRICTLY DIRECTED TO SUBMIT THEIR ASSIGNMENT BEFORE OR BY DUE DATE. NO ASSIGNMNENT AFTER DUE DATE WILL BE ACCEPTED VIA E.MAIL).

Rules for Marking

It should be clear that your Assignment will not get any credit IF:

• The Assignment submitted, via email, after due date.
• The submitted Assignment is not found as MS Word document file.
• There will be unnecessary, extra or irrelevant material.
• The Statistical notations/symbols are not well-written i.e., without usingMathType software.
• The Assignment will be copied from handouts, internet or from any other student’s file. Copied material (from handouts, any book or by any website) will be awarded ZERO MARKS. It is PLAGIARISM and an Academic Crime.
• The medium of the course is English. Assignment in Urdu or Roman languages will not be accepted.
• Assignment means Comprehensive yet precise accurate details about the given topic quoting different sources (books/articles/websites etc.). Do not rely only on handouts. You can take data/information from different authentic sources (like books, magazines, website etc) BUT express/organize all the collected material in YOUR OWN WORDS. Only then you will get good marks.

Objective(s) of this Assignment:

• The assignment is being uploaded to strengthen the students’ BASIC concepts about statistics.
• How to recognize and differentiate among different types of data in real life examples.
• Hands on arranging and displaying already collected data into an organized form, using given statistical method.
• Make students able to understand the concept of measures of central tendency and measures of dispersion.

Assignment.1 (Lessons 1-11)

Question 1: Marks: 5+5=10

Give an answer of the followings:

• Define an array.
• University students have been assigned roll no’s according to their marks. Which scale of measurement is used to assign the roll numbers?
• When statistical results are misleading?

(b) Make discrete frequency distribution from the given data,

1,2,3,2,1,2,1,3, 4,5,1,2,3,1,4,2, 2,3,2,1,4,4,4,2,1,

Also find;

• Cumulative frequencies
• Relative frequencies

Question 2: Marks: 2+8=10

(a) Find Geometric mean from the following data.

1, 2, 3,2,4,5,4,3,4,-1,4, 3,0,1,-3, 2,4

(b) The weight of the 40 male students at a university is given in the following frequency table:

Weight	frequency
118-126	3
127-135	5
136-144	9
145-153	12
154-162	5
163-171	4
172-180	2

Calculate median and mode from the above data.

Question 3: Marks: 2+2+6 =10

(a) Why Quartile deviation is better than the Rang?

(b) For given data calculate range and coefficient of range,

0.035, 0.045, 0.031, 0.044, 0.032

(c) Calculate an appropriate measure of dispersion for the following data.

Farm Size (acre)	No. of Farms
Bellow 40	394
41-80	461
81-120	391
121-160	334
161-200	169
201-240	113
241 and above	148