47. In a bino another? a. physical count b. discrete variable c. success or fail

Question

47. In a bino another? a. physical count b. discrete variable c. success or failure d. mean and standard deviation mial experiment, what probability remains constant from one trial to All of the following statements are true regarding a discrete binomial distribution except a. A random variable is assigned numerical values based on the outcomes of an 48. experiment. b. A random variable represents the outcome of an experiment. A binomial distribution has the characteristic that the probability of a success stays the same for each trial, but the probability of a failure varies from trial to trial. A binomial distribution has the characteristic that the data collected are a result of counts c. d. All of the following statements are true regarding continuous probability distribution except a. The Empirical Rule of probability can be applied to the uniform probability 49. distribution. b. Areas within a continuous probability distribution represent probabilities. c. The uniform probability distribution's standard deviation is proportional to the distributions range. For any uniform probability distribution, the mean and standard deviation can be computed by knowing the maximum and minimum values of the random variable. d. All of the following statements are true regarding general probability theory except a. An individual can assign a subjective probability to an event based on the 50. individual's knowledge about the event. A tree diagram is very useful for portraying conditional and joint probabilities. A combination is an arrangement of a set of objects in which there is an order from the first through the last. An experiment is an activity that is observed or measured. b. c. d. 51. The National Center for Health Statistics reported that of every 883 deaths in recent years, 21 resulted from an automobile accident, 182 from cancer, and 333 from heart disease. Using the relative frequency approach, what is the probability that a particular death is due from an automobile accident? a. 21/883 or 0.027 b. 539/883 or 0.610 c. 21/333 or 0.072 d. 182/883 or 0.206

Explanation / Answer

Please post 1 question per post, as per forum rules.

Relative frequ. of death due to auto. accident

= No. of total dealths due to auto. accident / total deaths

= (21)/(883)

= .027

Answer is a.

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