Statistics for Economists BS AIOU — Allama Iqbal Open University 2025
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Literary criticism
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this paper consists of 60 marks but now we have 35 marks paper.
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Can you please tell me more past papers please because my exams are starting from next week
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Did you provide the past papers of the science of society uos?
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Paper text
ALLAMA IQBAL OPEN UNIVERSITY ISLAMABAD
Level BS Semester Spring 2025
Subject Course Code Introduction to Statistics for Economists (8264) Maximum Marks 100
Maximum Time 03 Hours Pass Marks 40
Medium of Instructions English
NOTE: Attempt Five Questions
Q.No. Questions Marks
1. Consider the following data: (5+5+5+5)
14 22 10 46
34 31 25 68
39 41 30 15
30 18 24 37
45 21 44 56
65 36 54 59
Construct a frequency distribution.
Answer the questions:
(i) Construct a histogram.
(ii) Construct a semi-circular density.
2.
(i) For the following situations, indicate which distribution: 10+10
(a) Has the largest average value.
(b) Is more likely to produce a small value than a large value.
(c) Is the better representation of the distribution of ages in a
neck concent,
(d) Is the better representation of the distribution of the
times patients have to wait in a doctor's office.
(ii) For the next two distributions, indicate which distribution: if any
(a) Has values more evenly distributed about the center, the range of
which is larger.
(b) Is more likely to produce a value near
0.
(c) Has a greater likelihood of producing positive values than
negative values.
3. The heights of men in the Jordan are normally distributed 15+05
(also denoted as distribution of Ken).
(i) What proportion of them have heights.
a. Over 170 cm.
b. Between 170 - 172 cm?
c. Between 164 - 173 cm?
d. Between 166 - 173 cm?
e. Within one standard deviation of the height Ken.
4. Life insurance premiums are larger for older people than younger 20
people and premiums are generally higher for younger people who
have larger life insurance benefits. Without doing detailed statistical
calculations with them (you should use the reasoning)
(i) Describe the properties of an outlier.
(ii) A sample of 302 employees with large expected life opinions
on their attitude concerning a new health plan are being
expected by the management. The results, summarized
separately for males and females, showed that 52.8 percent
(males) and 65.6 percent (females) of respondents returned a
positive questionnaire card.
5.
(i) A vendor gives a 10% discount to each customer on their entire 10+10
purchase of an item, which is priced at Rs. 900, including taxes.
If a woman with a 5% discount coupon in hand buys two of
these items, what will she pay (including tax) for both items?
(ii) If each unit of shirts is sold at $140, what will its purchase
that q =
80.
6.
(a) What are the four components of a time series? How the seasonal 10+10
variations can be detected and decomposed from the time series
(b) Explain with a suitable example, how Paasche's price index
differs from a simple aggregative price index.
7.
(a) Write the table shown the average price in rupees for butter, cheese, and 10+10
margarine.
Year Price
Butter Cheese Margarine
2024 275.5 360.5 120.4
2023 280.3 489.7 180.6
Taking 2024 as the base year, construct the price index numbers by the
weighted average of a relative method for the year 1910, using the weights
26 for butter, 16 for cheese, and 8 for margarine.
