What does the notation p(A) represent?

What does the notation p(A) represent?

• A. p(A)
• B. Probability
• C. Random Sample
• D. Unit Normal Table

Answer: (A)

p(A) denotes the probability of the event A. In probability notation, the probability function p (or P) takes an event as input and outputs a number between 0 and 1 that measures how likely A is to occur. For example, if A is getting heads on a fair coin flip, p(A) would be 0.5. This is different from the idea of probability in general, or from a random sample (which is a process for collecting data), or from a unit normal table (which is a reference tool for standard normal probabilities). So p(A) is the specific probability value assigned to the event A.

p(A) denotes the probability of the event A. In probability notation, the probability function p (or P) takes an event as input and outputs a number between 0 and 1 that measures how likely A is to occur. For example, if A is getting heads on a fair coin flip, p(A) would be 0.5. This is different from the idea of probability in general, or from a random sample (which is a process for collecting data), or from a unit normal table (which is a reference tool for standard normal probabilities). So p(A) is the specific probability value assigned to the event A.