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A sample of 500 respondents was selected in a large metropolitan area to determine various information concerning consumer behavior.
A game company that manufactures a dart game that dispenses tickets has been asked to put a business plan together for a customer who wishes to buy the game.
Find the probability that a British nurse selected at random in 1851 would be 60 years or older.
There are 20 questions in a multiple choice test. Each question has five choices and one correct answer of these five choices. A student did not study.
A random sample of 1000 voters are classified as to whether they are in a low, medium, or high income bracket and whether they favor a new tax reform
Dr. Icit is conducting and ESP experiment. A computer is used to randomly select and present a number one of five pictures (house, boat, shoe, people, or horse)
In some countries, girls are valued much less than boys. Sometimes women in such countries abort fetuses known to be girls and many girl babies
A multiple-choice examination consists of 90 questions, each having possible choices a, b, c, d, and e.
The below table lists the last digits of the 73 published distances (in feet) of the 73 home runs hit by Barry Bonds in 2001 when he set the record
Express the indicated degree of likelihood as a probability value.
A summer resort boast that 85% of its new visitors return the next five years. Use the normal approximation to the binomial to find the probability
A local bank reports that 80 percent of its customers maintain a checking account, 60 percent have a savings account, and 50 percent have both
A poll of 1,250 investors conducted, assume that 50% of the investors found the market less attractive to the prior years.
The probability of contracting the kissing disease is .23 when one is exposed to a certain provocative environment. Sixty people are so exposed.
The listed sample distances (in millimeters) were obtained by using a pupilometer to measure the distances between the pupils of adults
Trading Volume on the NYSE is heaviest during the first half hour (early morning) and last half hour (late afternoon) of the trading day
In an exam, the mean score is 70 and the variance is 16. What is the probability that a student's score will lie within the "54 to 86" range
Each salesperson at stiles compton is rated either below average, average, or above average with respect to sales ability.
A study of 200 grocery chains revealed these incomes after taxes.
In the military, everything works of numbers. Recruiting is a good example of a binomial distribution. I'll use NC Army National Guard for an example.
Suppose that the number of cars, X, that pass through a car wash between 4:00pm and 5:00pm on any sunny Friday has the following probability distribution:
The mean income of a group of sample observations is $500; the standard deviation is $40. According to Chebyshev's theorem, at least what percent of the income
The following examples are experiments and their associated random variables. In each case identify the values the random variable
Describe exactly what information is provided by a Z-score
A survey of magazine subscribers showed that 55.8% rented a car during the last 12 months for business reasons, 44% rented a car for personal reasons