Question

Probability Distribution The number of items a given salesman sells per customer is a random variable. The table below is for a specific salesman (Wilbur) in a clothing store in the mall. The probability distribution of x (the number of items Wilbur sells to a customer) is given below: x 0 1 2 3 4 5 6 P(x) 0.20 0.35 0.15 0.12 0.10 0.05 0.03 Note: 0 ? p(x) ? 1 for each x ?p(x) = 1 (the sum is over all values of x) What is the probability that he sells three items to a randomly selected customer? (Read the value from the table.) P(x = 3) = What is the probability that he sells five items to a randomly selected customer? P(x = 5) = What is the probability that he sells three or 4 items to a randomly selected customer? (Add the probabilities.) P(3 ? x ? 4) = What is the probability that he sells at least three items to a randomly selected customer? (Add the relevant probabilities.) P(x ? 3) = What is the probability that he sells at most three items to a randomly selected customer? P(x ? 3) = What is the probability that he sells between (inclusive) 2 and 4 items to a randomly selected customer? P(2 ? x ? 4) =

          Probability Distribution
The number of items a given salesman sells per customer is a random variable. The table below is for a specific salesman (Wilbur) in a clothing store in the mall. The probability distribution of x (the number of items Wilbur sells to a customer) is given below:
x 0 1 2 3 4 5 6
P(x) 0.20 0.35 0.15 0.12 0.10 0.05 0.03

Note: 0 ? p(x) ? 1 for each x
?p(x) = 1 (the sum is over all values of x)

What is the probability that he sells three items to a randomly selected customer? (Read the value from the table.)
P(x = 3) =

What is the probability that he sells five items to a randomly selected customer?
P(x = 5) =

What is the probability that he sells three or 4 items to a randomly selected customer? (Add the probabilities.)
P(3 ? x ? 4) =

What is the probability that he sells at least three items to a randomly selected customer? (Add the relevant probabilities.)
P(x ? 3) =

What is the probability that he sells at most three items to a randomly selected customer?
P(x ? 3) =

What is the probability that he sells between (inclusive) 2 and 4 items to a randomly selected customer?
P(2 ? x ? 4) =

Probability Distribution
The number of items a given salesman sells per customer is a random variable. The table below is for a specific salesman (Wilbur) in a clothing store in the mall. The probability distribution of x (the number of items Wilbur sells to a customer) is given below:
x 0 1 2 3 4 5 6
P(x) 0.20 0.35 0.15 0.12 0.10 0.05 0.03

Note: 0 ? p(x) ? 1 for each x
?p(x) = 1 (the sum is over all values of x)

What is the probability that he sells three items to a randomly selected customer? (Read the value from the table.)
P(x = 3) =

What is the probability that he sells five items to a randomly selected customer?
P(x = 5) =

What is the probability that he sells three or 4 items to a randomly selected customer? (Add the probabilities.)
P(3 ? x ? 4) =

What is the probability that he sells at least three items to a randomly selected customer? (Add the relevant probabilities.)
P(x ? 3) =

What is the probability that he sells at most three items to a randomly selected customer?
P(x ? 3) =

What is the probability that he sells between (inclusive) 2 and 4 items to a randomly selected customer?
P(2 ? x ? 4) =

Added by Amanda S.

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