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Punjab (PTB) · Chapter test · Free

1st Year Statistics Chapter 1 TestIntroduction to Statistics

30 marks · 40 minutes · 21 questions. Covers: CHAP 1: Introduction to Statistics.

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1st Year Statistics Chapter 1 Test

1st Year · Statistics · Punjab (PTB)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 30Time: 40 minutes

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

  1. Registration is the source of:

    1. Primary data

    2. Secondary data

    3. Ogive

    4. Histogram

  2. A numerical characteristics of a sample is called:

    1. Statistic

    2. Parameter

    3. Variable

    4. Sample

  3. In the plural sense, statistics mean:

    1. Methods

    2. Numerical Data

    3. Sample values

    4. Population values

  4. In the singular sense, statistics means:

    1. Methodology

    2. Numerical data

    3. Sample values

    4. Count data

  5. Statistics came from the German word:

    1. Status

    2. Statista

    3. Statistik

    4. Statistique

  6. Colour of hair is a:

    1. Continuous variable

    2. Discrete variable

    3. Qualitative variable

    4. Quantitative variable

  7. The word statistics is at present used in:

    1. Two senses

    2. Three senses

    3. Four senses

    4. None of these

  8. Information recorded in its original form, whether counts or measurements, is referred to as:

    1. Continuous data

    2. Raw data

    3. Discrete data

    4. Arrayed data

  9. Life of a T.V. tube is a:

    1. Discrete variable

    2. Continuous variable

    3. Qualitative variable

    4. Constant

  10. A collection some of the elements from a group is called:

    1. Census

    2. Population

    3. Sample

    4. Registration

Q2. Short questions (Attempt any 6 of 8 · 6 × 2 = 12)

  1. Differentiate between a Variable and a Random variable.

  2. How many significant digits are there in the following numbers? 400

  3. Find the number of significant digits in the following numbers using scientific notation. 0.09800

  4. Round of the following numbers to the indicated accuracy. 23,24501 Four significant digits

  5. Write the terms of the following sums: 

  6. Differentiate between discrete and continuous variables.

  7. When is meaning of error of measurement?

  8. What are significant digits?

Q3. Long questions (Attempt any 2 of 3 · 2 × 4 = 8)

  1. Define the word statistics and explain its different meanings.

  2. Define Descriptive and Inferential Statistics and differentiate between them.

  3. Explain in detail the main aspects of a Statistical problem?