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In the probability distribution to the right, the random variable X represents the number of hits a baseball player obtained in a game over the
In the probability distribution to the right, the random variable X represents the number of hits a baseball player obtained in a game over the course of a season. Complete parts (a) through (f) below. X P(x) 0.1663 0.3353 0.2887 UAUN- 0 0.1478 0.0374 0.0245 (a) Verify that this is a discrete probability distribution. This is a discrete probability distribution because between _and , inclusive, and the of the probabilities is (Type whole numbers. Use ascending order.)(b) Draw a graph of the probability distribution. Describe the shape of the distribution. Graph the probability distribution. Choose the correct graph below. O A. O B. O C. OD. 0.47 0.41 0.4 0.3- 0.3- 0.2- Probability Probability Probability Probability 0.1 3 012345 012345 Number of Hits Number of Hits Number of Hits Number of Hits\f(c) Compute and interpret the mean of the random variable X. Hx = hits (Type an integer or a decimal. Do not round.) Which of the following interpretations of the mean is correct? O A. Over the course of many games, one would expect the mean number of hits per game to be the mean of the random variable. O B. The observed number of hits per game will be less than the mean number of hits per game for most games. O C. In any number of games, one would expect the mean number of hits per game to be the mean of the random variable. O D. The observed number of hits per game will be equal to the mean number of hits per game for most games. id) Compute the standard deviation of the rani iable X(d) Compute the standard deviation of the random variable X. Ox hits (Round to three decimal places as needed.) (e) What is the probability that in a randomly selected game, the player got 2 hits? (Type an integer or a decimal. Do not round.) (f) What is the probability that in a randomly selected game, the player got more than 1 hit? (Type an integer or a decimal. Do not round.)
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