Statistics-Quiz no 1

The number of accidents in a city during 2019 is

• Discrete Variable

• Continuous Variable

• Qualitative Variable

• Constant

Sum of dots when two dice are rolled is

• A discrete variable

• A continuous variable

• A constant

• A qualitative variable

A constant variable can take following value:

• Zero

• Fixed

• Not fixed

• Nothing

In statistics, a population consists of:

• All people living in a country

• All people living in the area under study

• All subjects or objects whose characteristics are being studied

• All the items which are defective

In inferential statistics we study the following:

• The methods to make decisions about the population based on sample results

• How to make decisions about mean, median, or mode

• How a sample is obtained from a population

• How to draw samples

The height of a student is 60 inches. This is an example of

• Qualitative data

• Categorical data

• Continuous data

• Discrete data

anize, summarize, and present the data:

• Inferential Statistics

• Probability

• Advanced Statistics

• Descriptive Statistics

In statistics , a sample means:

• A portion of sample

• A portion of the population

• All the items under investigation

• Some items

In descriptive statistics, we study

• The description of the decision making process

• The methods for organizing, displaying and describing data

• How to describe the probability distribution

• Methods of inferences

When data are collected in a statistical study for only a portion or subset of all elements of interest we are using:

• A sample

• A parameter

• A population

• Both b and c