INTERMEDIATE PART-I (11Ih CLASS)
STATISTICS PAPER-I
TIME ALLOWED:20Minutes

OBJECTIVE
MAXIMUM MARKS: 17
Note:
You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of that question number, Use marker or pen to fill the circles. Cutting or filling two ur more circle will result will be zero mark in that question.
Attempt is many questions as given in onjective type question paper and leave other blank. No credit will be awarded In case 'BUBBLES arc not filled, Do not solve question on this sheet of OBJECTIVE PAPER.

Question#1

INTERMEDIATE PART-II
(STATISTICS)
PAPER-II
TIME ALLOWED: 2.40 Hours 

SUBJECIVE
MAXIMUM MARKS: 68
NOTEWrite same question number and part number in answer book, given in the question paper
SECTION-1

2. Attempt any Eight parts. 16

3. Attempt any eight parts. 16


4. Attempt any six parts. 12

SECTION-II

NOTE:Attempt any three questions.
Question#5
(a) In a normal distribution mean is 20 and standard deviation is 5 Find mean deviation and quartile deviation.
(b) In a normal Distribution μ = 24,&2= 16 then find
(i) 33rd percentile
(ii) 9th decile

Question#6
(a) A population consists- of values 2 4, 6, 8 . Draw all posible samples of size n = 2 with replacement from the population and show that:  = snai
(b) Given the following population Distribution :

X

3

4

5

ƒ(x)

1/4

2/4

1/4

Find δ when n = 4 with replacement
Find δ  when n = 2 without replacement.
Is the proporion of even numbers in the sample.

Question#7
(a) Find 95% confidence interval for  μ  from the sample of size 8 with value 7. 9, 10, 11,  12, 13, 14.
(b) A firm of light bulbs claims that average life time of its products is 3500 hours. A random sample of 15 bulbs is taken and found that average life time is 3450 hours
And SD = 200 hours. Test Ho : μ < 3500 at α = 5%

Question#8
(a) For the following paired data (x, y)  find the estimated Line of regression of y on x . (0, 1),(1,1,8)    (2, 1,3 ), (3, 2,5) (4, 6, 3) Also show that ∑ (y -yv) = 0
(b) Given the following result :    r.0.5,     ∑ (x -x) = 90, ∑ (x -x )(y -y= 120 &) Sy = 8 then compute the number of items i,e. n=?

Question#9
(a) Find rank correlation co-efficient from the following  data:-

x

118

120

116

130

125

Y

107

117

130

112

122

(b)    The 2nd degree parabola for the years from 1992 to 1999 is = 472 – 21  X – 2X2 with origin at the middle of 1995 arid 1996 and unit of measurement  X is one year. Compute trend values for 1992 to 1999.