NHTSA crash tests. The National Highway Traffic Safety Administration (NHTSA) has developed a…

NHTSA crash tests. The National Highway Traffic Safety Administration (NHTSA) has developed a driver-side “star” scoring system for crash-testing new cars. Each crash-tested car is given a rating ranging from one star (*) to five stars (*****): the more stars in the rating, the better is the level of crash protection in a head-on collision. Suppose that a car is selected and its driver side star rating is determined. Let x equal the number of stars in the rating. Is x a discrete or continuous random variable?

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