The high temperature for the day was 20 degrees above zero, but at night, the temperature fell to 15 degrees below zero. what was the total temperature swing for the entire day?

Identify all the cases where non-probability sampling is used when attempting to study the characteristics of a large city. studies on every subject in the population divide a population in groups and obtain a sample studies with a limited amount of time demonstrate existing traits in a population studies with the nth person selected