# Subjective Papers of Sta301

PAST FINAL TERM

SUBJECTIVE PAPERS OF STA301

STATISTICS & PROBABILITY

Prepared By: Ammar Ahmed

01-15-2012 05:04 PM

1) WHAT I S MEANT BY PURPOSE OF RESEARCH? EXPLAIN 3
2) WHAT IS DIFFERENCE BETWEEN QUALITATIVE AND QUANTITATIVE RESEARCH?
3) HOW YOU EXPLAIN ETHNOGRAPHY AND ETHNO-METHODOLOGY?
QUESTION FOR 5 MARKS
1) WHAT IS DIFFERENT PART OF BIVARIATE TABLE?
2)WHAT DO YOU KNOW ABOUT NUMBER AND DURATION IN FOCUS GROUP STUDY?
3) DIFFERENCE BETWEEN DECEPTION AND CONFIDENTIALITY?
4) HOW ARTICLE IN LITREATURE HELP US REFINING OUR TOPIC?
2 Marks
1)If x2 =1.001 by fitting the binomial distribution with 2 degrees of freedom, find the critical value. use
a= 0.05.
2)If we draw a card from an ordinary deck of 52 cards. Can king and diamond be mutually exclusive
3)Suppose that we toss a fair coin three times. What is its sample space?
4)Why we take B2 =3 as the criteria for measuring the kurtosis of any distribution?
5)Define level of significance?
6)How we decide that the drawn sample is “Small sample” or a “large sample”?
3 Marks

7)If mean of a distribution is 0.925 and standard deviation is 0.132. Find out the limits by applying
chebychev’s inequality for k=2. How much fraction of data will lie between the twolimits?
8)If E(XY)=7.5, E(X)=2.4 and E(Y)=4.3, calculate covariance of X and Y.
9)Hypothesis se question tha
10)Z-test ka formula complete kerna tha ek(dun have math type to write)
11)Write down the two properties of sampling distribution of proportion p’, when the sampling is
performed with replacement?
12)What is natural pairing in observations?Give example.
5 Marks
13)Interpret the concept of five numbers summary and also explain the purpose of five number
summary.
14)What is the probability that a poker hand of 5 cards contain exactly 1 ace(hypergeaometric dist.)?
15)If n=11, x’(X bar)=36.33, var=55.5, a=0.10
Test the hypothesis u>31.
16)From the table given below find the value of chi square
Obvervation Frequency Oij
Expected Frequency Eij
120 100
30 150
80 100
170 150

the mean of a population is 6 a sample of size '20' is taken with replacement from this population.which one of the following is the mean of sampling distribution of mean.
1) 2 2) 8 3) 6 4) 3

Q no 2
Write down the significance of experimental design? marks :2

Q No: 03
Explain the formula of hyper geometric probability distribution. marks :2

Q no : 03
Indicate whether the following statement is true or false. IF false indicate why?
if P(A/B)=0, then A and b are mutually exclusive. marks : 2
Q no 5
Suppose that we toss a fair coin three times. what is the sample space? marks :2
Compute the following formula which is used to find the sample size.
Q no: 06
For a sample data , calculate . Marks :02

Q no:07
State Byes’ theorem. Marks : 03
Question no : 08
If x is a passion random variable with parameter value ‘4.5’, find p(x=1)?
Marks: 03
Q no: 09
When the value of chi-square is equal to zero? Marks : 03

Q no: 10
If x= 255, n=634, Po=6.60 then find the z-test statistics for probability. Marks : 03
Q no 11
Find out average % increase in population in the first decade has increased 20 %, next decade 25%, and in the third decade 4%. Marks : 05

Q no: 12
If n=5, p(x=1)=5/32 and p(x=2)=10/32. then find the value of p & q. marks: 05[/align]

16 mcqs where in paper.
Mostly mcqs where from the topics of:
statistics definition,
events,
univariate frequency table,
random variables.
Geometric mean (2 or 3 mcqs)
questions of 2 marks:
Two equations of straight line for X and Y.
Calculate b1 while the values of m1, m2, m3 and m4 where given.
questions of 3 marks:
definition of mutually exclusive events with the example.
Calculation of variance while the values where given.
Question of 5 marks:
Through Chebechev’s equation inequality calculate then interval while the values of K, standard deviation and mean where given

STA 301
most mcqs was from
deivation and especially standard deviation.
positive and negative skewed curve chart.
Standard error of estimate.

coefficient of variance.

Least Square regression for normal line . 5m

distribution factor for discrete random variable. 5.m

Coefficient of Cov. 3m

b1 and b2 in moment ration, what are role in sample space. 3m

MOST OF MCQS CAME FROM PAST PAPER IF YOU PREPARE JUST ONE FILE PREPARED BY LAIBA BUTT SO ALMOST YOUR 70% MCQ COVER FROM THAT FIL

2nd
total questions...64
56 mcqs of 1 marks each
04 question of 5 marks
1. What do you know about pretest and potest experiments and control group design
2. What is interpretation with reference to data and what is its purpose..
4. How evaluates quality of evidence in historical comperative.
5. What is bracketing with regard to...
6. What is cluster probilityand its problem.
7. What is the probility of standard regression has can be overcome.
8. Compare the personal and self administered questioners on the aspect of anoynity of the respondent

only 25% mcqs from past pprz
baki pra nahi kahan kahan se thay
aur short Qs k lye
hypothesis
f- ditribution
t statistics
aur sb distributions ki properties

5 marks:
all questions were from test hypothesis
Total question = 64 MCQ = 56 SUBJECTIVE = 8

the mean of a population is 6 a sample of size '20' is taken with replacement from this population.which one of the following is the mean of sampling distribution of mean.
Dear ek question Anova table mn se b tha, baqi ye ap ko khidmt mn hazr h Pay regard Ayesha

5 marks:
all questions were from test hypothesi

MCQS=20 MARKS TOO MUCH EASY AND 4ROM OLD PAPERS
SUBJECTIVE QUESTIONS

1.WHAT S B!AS?(2)

3. MATHEMATICAL EXPECTON OF DISCRETE RANDOM VARIABLE?(3)

4.ANY TWO PROPERTIES OF MATHEMATICAL EXPECTATION?(2)

5.WHAT S STAT!C TEST?(2)

6. DECIDE A SMALL SAMPLE AND LARGE SAMPLE?(2)

7.4 QUESTIONS WERE NUMERIC 4ROM PROBABLTY AND BNOMAL DSTRBUTON?(2 OR 3 MARKS)

8. CALCULATE THE CLASS BOUNDARES,CLASS MARKS AND RELATVE FRQUENCEY?(5)

9.2 QUESTIONS K SMAGH NA AYE PATA NAH KASY KERNAY THAY (5)......

10.TELL THE NULL AND ALTERNATIVE HYPOTHESIS OF 150?(2)
BEST OF LUCK AND PRAY 4 ME
PLZ PREPARE THIS FILE

1- Why distribution frequency of random variable X is also known as cumulative distribution frequency? (2)
2- What is Continuous random variable? (2)
3- What is difference between independent and dependent variable in the term of Regression. (3)
4- Question tha jis main k..2k n 3k values find karni , Complete question yaad nhi Bcoz I fail to attempt this (5)
5- Data given tha in which Find the Person’s Coefficient of Skewness with respect to Mean and Mode. (5)
6- aik question main Mean and Median find karma tha data given tha (3)
7- A question in which find the B1 & B2 and the µ1, µ2, µ3, µ4 values are given. (3)

deivation and especially standard deviation.

positive and negative skewed curve chart.
Standard error of estimate.

coefficient of variance.

Least Square regression for normal line . 5m

distribution factor for discrete random variable. 5.m

Coefficient of Cov. 3m

b1 and b2 in moment ration, what are role in sample space. 3m

statistics definition,

events,

univariate frequency table,

random variables.

Geometric mean (2 or 3 mcqs)
questions of 2 marks:

Two equations of straight line for X and Y.

Calculate b1 while the values of m1, m2, m3 and m4 where given.
questions of 3 marks:
definition of mutually exclusive events with the example.

Calculation of variance while the values where given.
Question of 5 marks:

Through Chebechev’s equation inequality calculate then interval while the values of K, standard deviation and mean where given.

### Friday, February 18, 2011

#### STA301 Final Term Current Paper (Feb 2011)

describe the formula for hypergeometric distribution? 2 marks

what is graphical representation? 2 marks

data was given to find range and coefficient of range? 3 marks

what is the t formula for paired distribution? 3marks.

Find the value of n, values for population mean, sample mean, standrd deviation, and t wre given? 3 marks. (these all values have to put in t-static)

what is the probablity that atleast one head occurs if a coin tossed 6 times succesively? 5 marks

90% confidence interval was to find for variance of population? 5 marks
find first 2 moments for function with respect to mean? (same exmple on pg 187 of sta hndouts.) 5 marks
mcqs wre totally from lec 1 to 22.

16)From the table given below find the value of chi square

Obvervation Frequency Oij Expected Frequency Eij

120 100

130 150

80 100

170 150

1: define binominal distribution

2: define experiment designn

3: difference independent and dependent regreession

4: differewnce confidence interval and hypothesis testing

5: hypergeometric ki defination b

Sta301 current paper….2011

class frequency ……….3 marks

hypothesis /null or Alternative hypothesis …..

lectr no 36 main...... page no 276
sample size of point estimation ki jo example ha ...... jis main value of n calculate karne ha……..5 marks

one from normal distribution jis main percentage find out karni the…5 marks

and page no192 pe jo example hay wo thee…

mostly paper lectr 30 se 40 main se tha

Q no 5
Suppose that we toss a fair coin three times. what is the sample space? marks :2

Compute the following formula which is used to find the sample size.

Q no: 06

For a sample data , calculate . Marks :02