Find the Probability That Either Event a or B Occurs

question 97

Multiple Choice

Find the probability that either event A or B occurs if the chance of A occurring is 0.5,the chance of B occurring is 0.3,and events A and B are independent.

• A)0.80
• B)0.15
• C)0.65
• D)0.85

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Definitions:

Quasi-experimental

Quasi-experimental designs involve research settings where the researcher lacks full control over the assignment of participants to conditions or groups, often due to ethical or practical considerations, making it different from true experimental designs.

Correlation Studies

Research methods that examine the relationship or association between two or more variables, without determining causation.

Random Assignment

The process of allocating participants in an experiment to different groups in a way that each participant has an equal chance of being assigned to any group, helping to ensure the validity of the results.

Causation

is the action of causing something, referring to a relationship between two events where one event (the cause) is understood to directly result in the other event (the effect).