Q1: INTRODUCTION OF STATISTICS

Statistics is the science of ---------, organizing,----------, analyzing and -------- data to assist in making more effective decisions

(keyword: COPAI)

(a)  

What is data?

• the use of any computers, storage, networking and other physical devices, infrastructure and processes to create, process, store, secure and exchange all forms of electronic data.

• a collection of facts, such as numbers, words, measurements, observations or even just descriptions of things.

• an arithmetical value, expressed by a word, symbol, or figure, representing a particular quantity and used in counting and making calculations.

• set of information that can be numerically recognized and analyzed.

The ​________ statistics are the methods of organizing, summarizing, and presenting data in an informative way.

• Descriptive

• Inferential

The ​________ statistics can be defined as a decision, estimate, prediction, or generalization about a population, based on a sample.​

• Descriptive

• Inferential

A ​ population is a ​ collection of ​ (a)   possible individuals, objects, or measurements of interest

A sample is a ​ (a)   of the population of interest

Write the word 'P' for Population and 'S' for Sample in the picture provided

Why take a sample instead of studying every member of the population?

• Easy

• Less in cost

• Time constraint

• Not possible to test all members of population

Chose the correct answer about the Qualitative variable

• Nonnumeric variable

• example: Gender

• example: Weight

• example: Religion

Chose the False answer about the Quantitative variable

• Nonnumeric variable

• example: number of siblings

• example: Weight

• Numeric variable