Validity of probability model

Reference no: EM1399911

1. A box contains four tickets, one marked with a star and the other three blank. One draw is made from this box at random.

a. What does "at random" mean?

b. What is the random variable in this experiment?

c. Write the probability model corresponding to this random variable. Explain your answer. Also verify that it is a valid probability model.

Reference no: EM1399911

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