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today's paper of sta301........

very easy for me...about 10 question was of playing cards exAMLE....another example of pair die and tossed dice were also in mcqs. 

all MCQs were repeated and came from this forum helpline..but 2 long questions were lil difficult.  

overall paper was gud.

thanx for the past solved papers. it works.

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Replies to This Discussion

mostly mcqs from past papers

1. venn diagram defination  2 marks

2. five number summary defination   2 marks

3. fiind coefficent of variatin      3 marks

4.sets are give,  find ( D intersactionE),  (d union E) and (D union F)   3 marks

5. two fair dice are rolled make sample space and find teh event that poccible occurance of outcomes is equal to 7  5marks

6. values given . find teh bowly's coffecnt of skewnwss   5 marks

overall paper was easy

kashf

kashf thanks for sharing ur paper ..keep it up 

Attention Related Mid Term papers Spring 2013: All Fellows You don’t need to go any other site for current Mid Term papers Spring  2013, Because All discussed data/sharing of our members in this discussion are going from here to other sites. You can judge this at other sites yourself. So don’t waste your precious time with different links.

 

Total questions were 26.
MCQs were 20, from past paper and very easy.
Do learn all the concepts of Probability.

Subjective questions were 6.
Two of two marks, Two of 3marks and 2 of Five marks.

Complete the formula for Conditional probability P (A/B) = P( A intersection B) / ? (2marks)
what is "five number summary" (2marks)

P(A) = 0.60, P(B) = 0.40 P(A intersecrion B) = 0.24, Find P(AUB) = ? (3marks)
Find the skewness, mean and mode were given? (3marks)

Find the two moment mean of the following ungrouped data.(5marks)
Two dice are rolled write it's sample space and what is the probability that 5 will occur (5 marks)

STA301 paper:
Total marks: 40
Total qs: 26
Total mcqs: 20
The subjective questions were:

  1. Which numbers are included in five number summary? (2 marks)
  2. Find out the missing element: P(A/B)=P(A intersection B)/? (2 marks)
  3. The values of Xo, Q2 (median) and Xm were given, we had to discuss the skewness of the distribution. (3 marks)
  4. A committee of of four members is to be chosen from a total of ten persons. In how many ways this could be done? (the formula was also to be written). (3 marks)
  5. Sets A, B and S were given, prove: AUB (complement)=A(complement) intersection B(complement), (Demorgan's law). (5 marks)
  6. The values of X were given, had to calculate the coeffecient of skewness. (5 marks)

STA301 solved paper 25 may 2013

For a positively skewed distribution m3 will be:
► Positive (Page 119)
► Negative
► Zero
► 1
Which one is the formula of range?
► xm-xo
► 0 m x x 
► 0 2 m x x 
► (Page 80) 0 2 m x x 
Which one of the following measurement does not divide a set of observations into equal parts?
► Quartiles
► Deciles
► Percentiles
► Standard deviations
The number of ways in which 4 books can be arranged
► 4
► 6
► 12
► 24
If X and Y are independent, then Var(X-Y) is equal to:
► Var(X)-Var(Y)
► () () VarXVarY
► () VarX Y
► Zero
If any value in the data is zero, then it is not possible to have:
►Harmonic Mean
►Arithmetic Mean
►Median
►Mode (rep)
A coin is tossed 3 times then, the number of sample points in the sample space is:
►3
►8 (Page 145)
►6
►4
The approximate number of observations in a set of data covered by the interval, Median Q.D are: 
►50 per cent (Page 84)
►68.5 per cent
►95.4 per cent
►99 per cent
In a set of 10 values all the values are 5, what is the value of 5th Decile:
►2
►5
►10
►20
A population that can be defined as the aggregate of all the conceivable ways in which a specified event can happen is known as:
►Infinite population
►Finite population
►Concrete population
►Hypothetical population (Page 12)
A histogram consists of a set of adjacent rectangles whose bases are marked off by:
►Class boundaries (Page 32)
►Class limits
►Class marks
►Class frequency
For positively skewed distribution
Mean…….Median…….Mode:
►=
►/p>
►> Click here for detail
► 

How to find relative frequency distribution:
► Divide the class frequencies in half      
► Divide the class frequency by the number of observations      
► Find the difference between consecutive lower class limits     
► Count the number of observations in the class  

Which of the following is NOT a possible probability?
► 25/100
 -1
► 0
► 1

Data collected from Ministry of food is:
       ► Ungrouped data
       ► Secondary data
       ► Primary data
       ► Arrayed data

A frequency polygon is obtained by plotting the class frequencies against what?
Select correct option:
Class bounday
cumulative frequency
relative frequency
mid point

Subjective
Q.1   Find out the missing element P(A|B) = ?/P(B)     ( Marks: 2 )
        
         P(A|B) = P(A∩B) /P(B)
Q.2   What is meant by b in the linear regress line y= a + bx?   ( Marks: 2 )
         b represent slope of the line.  
Q.3   A card is chosen from a deck of 52 cards. What is the probability if it is a
a)      Diamond
b)     Spade
c)      Diamond or Spade     ( Marks: 3 )
         n(S) = 52
         Diamond cards = n(A) = 13 and Spade = n(B) = 13
a)      P(A) = n(A)/n(S) = 13/52
b)      P(B) = n(B)/n(S) = 13/52
c)      P(AUB) = P(A) + P(B)
                                   = 13/52 + 13/52 = 26/52 = 1/2
Q.4   Consider the following values of moments:
        = 0, = 20.5, = 35.2 and = 1204
         Find the coefficient of skewness and kurtosis ().  ( Marks: 3 )
       
Q.5   Compute the mean deviation from mean for the following data. (Where Mean X= 18.6 )
X 14.5 16.5 18.5 20.5 22.5
Frequency 3 5 11 7 3 ( Marks: 5 )
X
F
f
14.5
3
-4.1
4.1
12.3
16.5
5
-2.1
2.1
10.5
18.5
7
-0.1
0.1
1.1
20.5
11
1.9
1.9
13.3
22.5
3
3.9
3.9
11.7
SUM
29
48.9
Q.6   A husband and wife appear in an interview for two vacancies in the same post. The probability of husband’s selection is 2/7 and probability of wife’s selection is 3/5. ( Marks: 5 )
What is the probability that only husband is selected?

 Current Midterm Spring 2013 Paper

Total Questions: 26
Sample point with example
Calculate Standard Deviation and Variance
What is Coefficient of determination?
The Sample Space for tossing dice two times find probability (Handouts Page 147 Example 3)

Mcq’s were easy 7 from papt papers (Moaaz file) others are also easy.

1.what is correlation?  2 MARKS

2.complete the formula   2 MARKS

P(A/B)=P(A intersection B)/?

3 .   P(A)=13/52      P(B)=12/52 

P(A  intersection B) = 3/52

Then find  P(A/B).    3 MARKS

4.Mean was given ,Mode was given  ,s was also given

Pearson coefficient of skewness find krna tha.

5.Two dice are rolled.make sample space also find probability that sum of out come is 10.    5 marks

6.m1,m2,m3 were given  1st 3 moments find krni thi (lecture #14 me jo hai ).    5 marks

 

STA301 Current Midterm Paper May 2013

total question: 26
20 mcqs mostly from past papers
26: s={1,2,3,4,......9} A={1,2} B={3,4,5,6}
Compliment of A=?
Compliment of B=?
Power set of A=?
25: kuch data given tha us ki minimum maximum aur lower quartile upper quartile maloom krna tha
24: c.v=? data given tha
23:bhool gai 
22: probability ka multiplicative law pucha tha
21; quartile deviation nikalna tha 
data given tha

 

today's paper of sta301........

Q1) Write the law of complement for any event of A?
Q2) Find Pearson’s Coefficient of skewness if median=130 , mean=125, S=5?
Q3)How many probality of drawing white balls from bags if red ball=5 white is =3 black ball= 6 ?
Q4)Calculate the coefficient of standard deviation for the data given below:
X= 111, 123, 153, 173, 129

MCQs all were very easy and best of luck for every one

why standard deviation is better than mean deviation??
iska ans koi bta skta hy?

define conjoint sets
define corelation
find mean deviation
find probabaility
find coefficient of variance

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