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Current Final Sta301 today's paper
Mean deviation=? Options 0.5sigma or 0.75sigma 2) if X and Y are independent then var(XY)=? 3) proportion of males in pak is at least 0.48 the what is alternative hypothesis I did P is less than 0.48 4) if sigma is doubled then what will be the effect on confidence intetval I did confidence interval will be doubled. 6)mew is less tahn mewo and alpha =0.05 then critical region will be? I did z is greater than 0.05. 7)Var(4X+5)=4VarX+5. 8)marginal probability distribution is? I did P(A/B). (9) if mew is less than mewo and alpha is 0.01 then z=? Idid z is greater than z0.01.These were the mcqs and rest of the mcqs were direct and conceptual P50? When n=10 and all values are 5. I did
Q1) Poportion of smokers in the cityof lahore p^=X/n =300/500
Q2) first moment ratio when mew2 =0.2 mew3=0 solution:mew3square/mew2cube=0/(0.2)cube=0
Q3)What type of distribution will be used to determine proportion of smokers and non smokers I think binomial distribution as it will result in two mutually exclusive events success and failure and all trials are independent
Q4) P(A union B) for not mutually exclusive events when P(A)=0.30 and P(B)=0.55 P(A intersection B)0.25
=0.30+0.550.25=0.6
Q5) determine n if zalpha by 2 is 1.96 andq^= 1p^=0.84 and e=0.05 solution: p^=0.16 and n=z alpha by 2 square/e square *p^q^=207(may be wrong).
Q6) Values of X and corresponding P (X) were given and required was to determine P(X is less than 4) and P(X is greater than 4 and less than and equal to 8)
Q7) calculate cumulative probability distribution when X and corresponding probabilities were given
Q8) write moment ratios formula and values for normal distribution
Q9) N=5n=3 0,2,3,3,5 construct samples without replacement
Q10) difference between chebychev in equality and empirical formula
Q11)find E(X) and Var(X) when x is between 1 and 2. And g(x) is 1/3x^2. Solution: E(X)= 0.25 and E(X)^2=2.25 var(X)= 2.13
Q12) Define inferential statistics.
Q13) A process is in control average packing is 6oz s.d is 0.2 when a sample of 100 is selected average of sample is 6.1oz. Now determine whether the process is controlled or not? Z=1.645 given
Time management is very important as the paper is quite lengthy.
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sta301 ka final term kitna lecture add hn
My today's sta301 paper:
2 
4 
h(y) 

1 
0.10 
0.15 

3 
0.20 
0.30 

5 
0.10 
0.15 

g(x) 



6. What are the points of inflection in normal probability?
No of patels X 
F(x) 
3 
0.15 
4 
0.10 
5 
0.20 
6 
0.30 
7 
0.25 
8 
0.075 
9 
0.025 
8. E(x) = 3.2, E(y) = 3.0 and E(xy) = 9.6 then calculate the value of cov (x,y) ?
9. A random sample of size is drawn from normal population with mean 5 a variance α
If S=2.5, X = 7 and t = 3 then what is the value of n?
10.if random sample size n=2 is drawn with replacement from the population consisting of three numbers o,2,5 draw all possible sample as sample means?
AOA
Exam share kare sub koi
My today's sta301 paper
1 to 40 mcqs
90 % were conceptual and 10% numerical related
6 questions of 2 marks
6 questions of 3 marks
2 questions of 5 marks
Subjective questions were variance,
poisson distribution,
joint probability distribution,
addition law of mutually exclusive events,
type 1 type 2 error,
Mean,
Probability,
Hyper geometric distribution,
Confidence interval,
Test statistic and
Null hypothesis....
sta301 ka final term kitna lecture add hn
mcq past papers se thy koi bta de plz?
yes past papers mein sy ty.....
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