# ECO-07 SOLVED ASSIGNMENT 2017-18

ECO – 07 (ECO-07-SOLVED-ASSIGNMENT-2017-18)
Course Title : Elements of Statistics
Assignment Code : ECO – 07/TMA/2017-18
Coverage : All Blocks
Maximum Marks: 100
Attempt all the questions.
1. What is statistical sampling and explain various methods of sampling. (20)

2. “Statistical methods are most dangerous in the hands of the inexpert” Discuss with example.
(20)

3. (a) Find out missing frequencies in the following incomplete distribution:
Measurement 0-10 10-20 20-30 30-40 40-50
Frequency 3 ? 20 12 ?
The values of Median and Mode are 27 and 26 respectively. (20)

4. (a) Karl Pearson‟s coefficient of skewness of a distribution is +0.32. Its standard deviation is 6.5 and mean is 29.6. Find the mode and median of the distribution.

(b) The mean and standar deviation of a set of 100 observations were worked out as 40 and 5 respectively by a computer who by mistake took the value 5o in place of 40 for one observation. Recalculate the correct mean and variance.

(c) Find the missing information from the following

(d) Distinguish between „U‟ shaped and bell-shaped data with suitable illustrations.
(5×4))

5. Write short notes on the following:
(a) Dispersion

(b) Mean deviation

(c) Standard deviation

(d) Lorenz Curve

### 10 Responses

1. Barkha says:

Best

2. Nida says:

• Team Guffo says:

Please check again 🙂

1. September 15, 2017

[…] ECO – 07 Solved Assignment 2017-18 1.0 ke beeta upaay se pata chalata hai ki benchamaark ke saath ek ke roop mein atakalen chalatee hain 0 ka beeta koee sambandh nahin hai, aur 0 ke neeche ka beeta benchamaark ke vipareet vikaas ko darshaata hai udaaharan ke lie, yadi kisee udyam portapholiyo mein 1.0 ka beeta hai jo es end pee 500 ko benchamaark ke roop mein upayog karata hai, to portapholiyo aur benchamaark ke beech ka vikaas lagabhag avivechy hai. is ghatana mein ki es end pee 500 10% oopar hai, isalie portapholiyo bhee hai. nakaaraatmak beeta par, yadi es end pee 500 oopar hai, to portapholiyo sahee ulata tareeke se aage badhata hai, jo is sthiti ke lie neeche jaenge. […]

2. September 15, 2017

[…] ECO – 07 Solved Assignment 2017-18 Product Life Cycle (PLC) The possibility of the Product Life Cycle was first created in 1965 by Theodore Levitt in an article entitled “Adventure the Product Life Cycle” distributed in the Harvard Business Review on 1 November 1965. For a business, having a developing and practical income stream from product deals is vital for the soundness and accomplishment of its operations. The Product Life Cycle model can be utilized by experts and supervisors to examine the development phase of products and ventures. Understanding which arrange a product is in gives data about expected future deals development, and the sorts of systems that ought to be actualized. […]

3. September 16, 2017

[…] By differentiate, a flawlessly unequal appropriation would be one in which one individual has all the wage and every other person has none. All things considered, the curve would be at y = 0% for all x < 100%, and y = 100% when x = 100%. This curve is known as the "line of impeccable imbalance." The Gini coefficient is the proportion of the region between the line of immaculate balance and the watched Lorenz curve to the territory between the line of flawless uniformity and the line of impeccable imbalance. The higher the coefficient, the more unequal the appropriation is. In the chart on the right, this is given by the proportion An/(A+B), where An and B are the territories of areas as set apart in the outline. ECO – 07 Solved Assignment 2017-18 […]

4. September 16, 2017

[…] ECO – 07 Solved Assignment 2017-18 […]

5. September 17, 2017

[…] ECO – 07 Solved Assignment 2017-18 […]

6. October 14, 2017

[…] 2017-18 ECO – 05 Solved Assignment 2017-18 ECO – 06 Solved Assignment 2017-18 ECO – 07 Solved Assignment 2017-18 ECO – 09 Solved Assignment 2017-18 ECO – 12 Solved Assignment 2017-18 ECO – 13 […]

7. February 8, 2020

[…] ECO-07-SOLVED-ASSIGNMENT-2017-18 ECO-07 SOLVED April 16, 2018 […]

This site uses Akismet to reduce spam. Learn how your comment data is processed.

error: Content is protected !!