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A software distributor is considering whether to purchase a batch of 20,000 3.5" floppy disks at a flea market auction for 4 cents each
A retail grocer has decided to market organic "health food" and will purchase a new line of products from each of two suppliers
The city of a particular community consists of five elected residents of the community, two of whom are land developers.
Bill flips a coin that can land heads or tails, and you assign equal probabilities to each, with all flips mutually irrelevant
A person rolls a pair of six-sided dice, which are equally likely to come up any number from 1 to 6. If the person rolls a seven he gets $0.
Your troop's past cookie sales went sour last year. Parents had to bail you and your troop member out of the hole.
Find the value of (a) in the following discrete probability distribution:
At a computer manufacturing company, the actual size of computer chips is normally distributed with a mean of 1 centimeter and a standard deviation of 0.1
A southern state has an unemployment rate of 6%. The state conducts monthly surveys in order to track the unemployment rate
Determine if the normal approximation to the binomial distribution could be used for the following problems:
Find the probabilities for the standard normal random variable z: P(-1.55
A geological study indicates that wells drilled in a certain area should strike water with probability 0.2. Find the probability that:
A factory employs several thousand workers, of whom 30% are Hispanic. If the 15 members of the union executive committee were chosen from the workers at random
If the parents have 5 children, the number who have type O blood is a random variable X that has the binomial distribution with n=5 and p=0.25
An electric power trading company has an option to buy 1,000,000 terawatts of electricity from a producer for $10 per terawatt.
If a coin is tossed three times, the likelihood of obtaining three heads in a row is
Dollar Department Stores has received an offer from Harris Diamonds to purchase Dollar's store on Grove Street for $120,000.
As the owner of a rent-a-car agency you have determined the following statistics:
In a shipment of 15 room air conditioners, there are 3 with defective thermostats. Two air conditioners will be selected at random and inspected
Records of student patients at a dentist's office concerning fear of visiting the dentist suggest the following proportions.
A mechatornic assembly is subjected to a final functional test. Suppose that defects occur at random in these assemblies
Given that the probability that A occurs is 0.3, the probability that B does not occur is 0.6, and the probability that either A or B occurs is 0.5
A roulette wheel has 34 slots, 2 of which are green, 16 are red, and 16 are black. A successful bet on black or red doubles the money
Suppose you are eating at a pizza parlor with two friends. You have agreed to the following rule about who will pay the bill: Each person will toss a coin.
Let Z be a standard normal random variable and let V have a chi-square distribution with n-degrees of freedom