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## IGNOU BPC 004 Solved Assignment 2022-23

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**Important Note – IGNOU BPC 004 ****Solved Assignment 2022-2023 Download Free You may be aware that you need to submit your assignments before you can appear for the Term End Exams. Please remember to keep a copy of your completed assignment, just in case the one you submitted is lost in transit.**

**Submission Date : **

**31st March 2033 (if enrolled in the July 2033 Session)****30th Sept, 2033 (if enrolled in the January 2033 session).**

All questions are compulsory.

**Section A**

## Answer the following questions in 1000 words each. 3 x 15 = 45 marks

## 1. Define statistics and describe its types, scope and uses.

**Statistics**, the science of collecting, analyzing, presenting, and interpreting data. Governmental needs for census data as well as information about a variety of economic activities provided much of the early impetus for the field of statistics. Currently the need to turn the large amounts of data available in many applied fields into useful information has stimulated both theoretical and practical developments in statistics.

Data are the facts and figures that are collected, analyzed, and summarized for presentation and interpretation. Data may be classified as either quantitative or qualitative. Quantitative data measure either how much or how many of something, and qualitative data provide labels, or names, for categories of like items. For example, suppose that a particular study is interested in characteristics such as age, gender, marital status, and annual income for a sample of 100 individuals. These characteristics would be called the variables of the study, and data values for each of the variables would be associated with each individual. Thus, the data values of 28, male, single, and $30,000 would be recorded for a 28-year-old single male with an annual income of $30,000. With 100 individuals and 4 variables, the data set would have 100 × 4 = 400 items. In this example, age and annual income are quantitative variables; the corresponding data values indicate how many years and how much money for each individual. Gender and marital status are qualitative variables. The labels male and female provide the qualitative data for gender, and the labels single, married, divorced, and widowed indicate marital status.

Sample survey methods are used to collect data from observational studies, and experimental design methods are used to collect data from experimental studies. The area of descriptive statistics is concerned primarily with methods of presenting and interpreting data using graphs, tables, and numerical summaries. Whenever statisticians use data from a sample—i.e., a subset of the population—to make statements about a population, they are performing statistical inference. Estimation and hypothesis testing are procedures used to make statistical inferences. Fields such as health care, biology, chemistry, physics, education, engineering, business, and economics make extensive use of statistical inference.

**Descriptive statistics**

Descriptive statistics are tabular, graphical, and numerical summaries of data. The purpose of descriptive statistics is to facilitate the presentation and interpretation of data. Most of the statistical presentations appearing in newspapers and magazines are descriptive in nature. Univariate methods of descriptive statistics use data to enhance the understanding of a single variable; multivariate methods focus on using statistics to understand the relationships among two or more variables. To illustrate methods of descriptive statistics, the previous example in which data were collected on the age, gender, marital status, and annual income of 100 individuals will be examined.

**Tabular methods**

The most commonly used tabular summary of data for a single variable is a frequency distribution. A frequency distribution shows the number of data values in each of several nonoverlapping classes. Another tabular summary, called a relative frequency distribution, shows the fraction, or percentage, of data values in each class. The most common tabular summary of data for two variables is a cross tabulation, a two-variable analogue of a frequency distribution.

## 2. Calculate Spearman’s Rank Order Correlation for the following data:

## 3. The scores obtained by the two groups of employees on self concept scale are given as follows, compute t test and find if significant difference exists between the two groups:

**Section B**

## Answer the following questions in 400 words each. 5 x 5 = 25 marks

## 4. Compute mean and standard deviation for the following data:

12,13,14,15,16, 23, 23,12,12,10
5. Describe tabulation of data.

## 6. What are linear and non-linear relationships? Explain the direction of correlation.

## 7. Compute Chi-square for the following data:

8. Explain the fundamental concepts in determining the significance of the difference

between means.

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**Section C**

## Answer the following questions in 50 words each. 10 x 3 = 30 marks

## 9. Cumulative frequency curve

10. Point estimation

11. Frequency polygon

12. Dispersion

13. Properties of quartile deviation

14. Scatter diagram

15. Parametric statistics

16. Kendall’s tau

17. Test of goodness of fit

18. Types of probability

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**IGNOU Instructions for the BPC 004 STATISTICS IN PSYCHOLOGY ****Solved Assignment 2022-23**

IGNOU BPC 004 Solved Assignment 2022-2023 Download Free Before attempting the assignment, please read the following instructions carefully.

- Read the detailed instructions about the assignment given in the Handbook and Programme Guide.
- Write your
__enrolment number, name, full address and date on the top right corner of the first page of your response sheet__(s). - Write the course title, assignment number and the name of the study centre you are attached to in the centre of
__the first page of your response sheet__(s). for your response and tag all the pages carefully__Use only foolscap size paper__- Write the relevant question number with each answer.
- You should write in
__your own handwriting__.

**GUIDELINES FOR IGNOU Assignments 2022-23**

**IGNOU BPC 004 Solved Assignment 2022-23** You will find it useful to keep the following points in mind:

- Planning: Read the questions carefully. IGNOU BPC 004 Assignment 2022-23 Download Free Download PDF Go through the units on which they are based. Make some points regarding each question and then rearrange these in a logical order. And please write the answers in your own words. Do not reproduce passages from the units.
- Organisation: Be a little more selective and analytic before drawing up a rough outline of your answer. In an essay-type question, give adequate attention to your introduction and conclusion. IGNOU BPC 004 Solved Assignment 2022-2023 Download Free Download PDF The introduction must offer your brief interpretation of the question and how you propose to develop it. The conclusion must summarise your response to the question. In the course of your answer, you may like to make references to other texts or critics as this will add some depth to your analysis.
- Presentation: IGNOU BPC 004 Solved Assignment 2022-2023 Download Free Download PDF Once you are satisfied with your answers, you can write down the final version for submission, writing each answer neatly and underlining the points you wish to emphasize.

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**BPC 004 Handwritten Assignment 2022-23**

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