Question

The number of credit cards in the wallet of a randomly selected person varies from 0 to 6. The probability distribution of the number of credit cards, X, is as follows: xi: 0, 1, 2, 3, 4, 5, 6, Total P(X = xi): 0, 0.14, 0.18, 0.34, 0.18, 0.12, 0.04, 1 1. Use the random variable notation to express symbolically each of the following: The probability that the number of credit cards is exactly 4 is equal to 0.18. An event in which the number of credit cards is exactly 3. The probability that the number of credit cards is exactly 3. 2. Use the above probability distribution table to find the following: a. P(0 ? X < 1) = (Round the answer to 2 decimals) b. P(X = 2 or X = 3) = (Round the answer to 2 decimals) c. P(X > 0) = (Round the answer to 2 decimals)

          The number of credit cards in the wallet of a randomly selected person varies from 0 to 6. The probability distribution of the number of credit cards, X, is as follows:
xi: 0, 1, 2, 3, 4, 5, 6, Total
P(X = xi): 0, 0.14, 0.18, 0.34, 0.18, 0.12, 0.04, 1
1. Use the random variable notation to express symbolically each of the following:
The probability that the number of credit cards is exactly 4 is equal to 0.18.
An event in which the number of credit cards is exactly 3.
The probability that the number of credit cards is exactly 3.
2. Use the above probability distribution table to find the following:
a. P(0 ? X < 1) = (Round the answer to 2 decimals)
b. P(X = 2 or X = 3) = (Round the answer to 2 decimals)
c. P(X > 0) = (Round the answer to 2 decimals)

The number of credit cards in the wallet of a randomly selected person varies from 0 to 6. The probability distribution of the number of credit cards, X, is as follows:
xi: 0, 1, 2, 3, 4, 5, 6, Total
P(X = xi): 0, 0.14, 0.18, 0.34, 0.18, 0.12, 0.04, 1
1. Use the random variable notation to express symbolically each of the following:
The probability that the number of credit cards is exactly 4 is equal to 0.18.
An event in which the number of credit cards is exactly 3.
The probability that the number of credit cards is exactly 3.
2. Use the above probability distribution table to find the following:
a. P(0 ? X < 1) = (Round the answer to 2 decimals)
b. P(X = 2 or X = 3) = (Round the answer to 2 decimals)
c. P(X > 0) = (Round the answer to 2 decimals)

Added by Ricky M.

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