Question: Discrete Random Variable Probability Distribution

Using the company records for the past 500 working days, the manager of Tampa Motors, an automobile dealership in Tampa, has summarized the number of cars sold per day into the following table:

1. Form the probability distribution for the number of cars sold per day. Present it in a table format. Compute the mean or expected number of cars sold per day (round to a whole number).
2. Compute the standard deviation for the variable "number of cars sold per day" (round to two decimal places).
3. What is the probability that on any given day fewer than four cars will be sold? Do not round.
4. What is the probability that on any given day at most 4 cars will be sold? Do not round.
5. What is the probability that on any given day at least 4 cars will be sold? Do not round.

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