The correct answer is a) a class or category of objects, events, or activities.
The concepts are ideas that represent a class or category of objects, events, or activities.
In general terms, we can define a concept as an idea or a form of though. It is the general idea that comes to your mind before identifying with words. Concepts can be a class or category of objects, events, or activities that are formed in your brain to understand things. The abstract idea that is formed in your mind can be understood and apply to many different to understand reality.
Answer:
C) Stratified sampling
Explanation:
Stratified sampling: This is one of the probability sampling technique in which the researcher tends to divides a particular population that is taken for the researcher purpose into various groups or strata, and after dividing the population, the researcher randomly finally selects the participants from those groups or strata and being analyzed later on. Further, the group is taken for study is through the random sampling technique.
Advantage:
1. It provides great precision.
2. The study group is small, hence cost-effective.
Answer:
C. Ph.D
Explanation:
PhD is the highest degree that everyone could achieve in any field of study. In order to obtain it, people have to prove their capability in their field by expanding the field of knowledge though original research. Because of the assumption that a person has to dedicate his/her life into one specific topic to obtain a PhD, Someone who obtain this title tend to be seen as more favorable in research and clinical works.
An individual who feels the need to check and recheck repeatedly whether or not the stove was turned off is probably suffering from an obsessive-compulsive disorder (OCD).
An OCD is a mental disorder that affects people with an obsession to check things repeatedly without any reason in particular. In the example provided, the individual cannot control the need to check if the stove is turned off.
Other types of OCD include doing certain routine activities repeatedly such as washing hands several times during the day.
People affected by OCD usually look for help with different therapies in order to overcome this mental disorder.
Answer:
C. It is a highly developed economy.
