What R function is used to calculate the probability of exactly k events occurring in a Poisson distribution?

Based on the given R output from the str(data) function, which of the following statements is correct?

If, on average, 8 customers arrive at a store every hour, what is the value of λ for a Poisson distribution modeling this situation?

Which of the following best explains the importance of conditional probability in real-world applications?

A bag contains 5 red, 4 blue, and 3 green balls. If a ball is randomly selected, what is the probability that it is not blue?

In a Bernoulli trial, the probability of failure is denoted by:

A student scores 75 on a test with a mean of 60 and a standard deviation of 5. What is the student’s Z-score?

Which R function is used to determine the length of a vector?

What is the value of 5! (5 factorial)?

In probability theory, what does it mean if an event has a probability of 0?