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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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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
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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:
STA301 solved paper 25 may 2013

Which one of the following measurement does not divide a set of observations into equal parts?
► Quartiles
► Deciles
► Percentiles
► Standard deviations

If X and Y are independent, then Var(XY) 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)

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
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?

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 1^{st} 3 moments find krni thi (lecture #14 me jo hai ). 5 marks
STA301 Current Midterm Paper May 2013
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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