The number of defective machines produces by a factory is a quantitative discrete variable

The data collected based on the historical records of patients from a hospital is known as primary data

A journalist goes to a campground to ask people randomly on their feelings about air pollution. The sampling techniques used is quota sampling.

The characteristics of individuals about which we collect information are called population.

A table that consists of data values and their counts is called a frequency distribution table.

The numerical descriptive measures of samples are called parameters.

The process in which the sample includes elements from each of the homogeneous segment is called cluster sampling.

Primary data is a data collected by the investigator himself/herself for a specific purpose.

Descriptive statistics makes inferences and predictions about a population based on a sample-data taken from the population.