According to the U.S. Census, 67.5% of the U.S. population was born in their state of residence. In a random sample of 200 Americans, what is the probability that fewer than 125 were born in their state of residence?
Answer to relevant QuestionsRecall that for use of a normal distribution as an approximation to the binomial distribution, the conditions np ≥ 5 and nq ≥ 5 must be met. For each given probability, compute the minimum sample size needed for use of ...A mail order company has an 8% success rate. If it mails advertisements to 600 people, find the probability of getting less than 40 sales. A recent study of the life span of portable compact disc players found the average to be 3.7 years with a standard deviation of 0.6 year. If a random sample of 32 people who own CD players is selected, find the probability ...The average salary for graduates entering the actuarial field is $40,000. If the salaries are normally distributed with a standard deviation of $5000, find the probability that a. An individual graduate will have a salary ...A recent study showed that the modern working person experiences an average of 2.1 hours per day of distractions (phone calls, e-mails, impromptu visits, etc.). A random sample of 50 workers for a large corporation found ...
Post your question