# Question: Apanel of 300 persons chosen for jury duty includes 30

Apanel of 300 persons chosen for jury duty includes 30 under 25 years of age. Since the jury of 12 persons chosen from this panel to judge a narcotics violation does not include anyone under 25 years of age, the youthful defendant’s attorney complains that this jury is not really representative. Indeed, he argues, if the selection were random, the probability of having one of the 12 jurors under 25 years of age should be many times the probability of having none of them under 25 years of age. Actually, what is the ratio of these two probabilities?

## Relevant Questions

Check in each case whether the values of n and θ satisfy the rule of thumb for a good approximation, an excellent approximation, or neither when we want to use the Poisson distribution to approximate binomial probabilities. ...The number of monthly breakdowns of a super computer is a random variable having a Poisson distribution with θ = 1.8. Use the formula for the Poisson distribution to find the probabilities that this computer will function ...According to the Mendelian theory of heredity, if plants with round yellow seeds are crossbred with plants with wrinkled green seeds, the probabilities of getting a plant that produces round yellow seeds, wrinkled yellow ...Sketch the OC curve for a sampling plan having a sample size of 15 and an acceptance number of 1. Use the results of Exercise 6.13 to find α3 and α4 for the gamma distribution.Post your question