ECO-07 Elements of statistics SOLVED ASSIGNMENT 2019-2020
Course Code : ECO – 07
Course Title : ELEMENTS OF STATISTICS
Assignment Code : ECO – 07 – 11/TMA/2019-20
Coverage : All Blocks
ECO-07 Company Law Solved Assignment 2019-20
|Service Type||Solved Assignment (Soft copy/PDF)|
|Semester||2019-2020 Course: BCOM|
|Short Name||ECO-07 (ENGLISH)|
|Assignment Code||ECO – 07 – 11/TMA/2019-20|
|Product||Assignment of BCOM 2019-2020 (IGNOU)|
|Submission Date||1. Those who are enrolled in July 2019, it is valid up to June 2020.
2. Those who are enrolled in January 2020, it is valid up to December 2020.
Attempt all the questions
1. What is statistical survey? Discuss the steps to be followed while conducting statistical survey. (20)
2. Central tendency, dispersion an skewness are three different measures to analyse numerical data.
3. Calculate a) Mean, b) Variance and c) Standard deviation from the following frequency distribution:-
4. a) What is the relationship between Mean. Median and Mode:
(i) Symmetrical curve
(ii) A negatively slewed curve
(iii) A positively skewed curve
b) For a frequency distribution: Q3-Q2 = 40 & Q2-Q1=60 Find coefficient of skewness.
5. Write short notes on the following – (5×4)
a) Principle of preparing graphs.
b) Statistical Table
c) Data Array
d) Properties of Normal Curve.
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