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A study of job satisfaction was performed for 4 occupations: doctor, chemist, CPA, & dentist. Job satisfaction was measured on a scale of 0-100.
A six-sided die is rolled 30 times and the numbers 1 through 6 appear as shown in the following frequency distribution.
For experiment a, find the probability of event A: at least one 6. For the second experiment, find the probability of event B: at least one pair of 6s.
Jules, Vincent, and Mia are physicians at the local hospital. One of their duties is being on call during non-working hours to handle any emergencies
At the end of a basketball game, a team is down by 1 point. As the last play, a player from that team throws a three-point shot
A box contains 4 marbles: 2 red, one blue and one green. Two marbles will be selected at random. Find the probability of selecting each of the following.
A package of frozen vegetables has a label that says "contents 32 oz."
Profits (X ) in an industry consisting of 100 firms are normally distributed with a mean value of $1.5 million and a standard deviation of $120,000. Calculate :
A cola-dispensing machine is set to dispense 9.00 ounces of cola per cup, with a standard deviation of 1.00 ounces.
The events X and Y are mutually exclusive. Suppose P(X) = .05 and P(Y) =.02. What is the probability of either X or Y occurring? What is the probability
A very rich investor has a small amount of spare cash which she wishes to invest.
Given a worn machine that creates defects at the average rate of 5 units per hour, what 's the probability of no defects occurring in any specific hour
A manufacturer of window frames knows from long experience that 5% of the production will have some type of minor defect that will require an adjustment
A study by the national park services revealed that 50% of vacationers going to the Rocky Mountain region visit Yellowstone Park, 40% visit the Tetons
In a certain town 63% of the houses have smoke detectors. The fire brigade estimates that people die 24% of the time when the fire is in a house
When two balanced dice are rolled, 36 equally likely outcomes are possible. Let X denote the smaller of the two numbers.
Use the appropriate table of areas to find the specified area under the standard normal curve to find the area
The difference between the theoretical normal distribution and the actual, or observed, distribution is the same for any theoretical vs actual.
Assume the probability of a tire blowout is 0.102% per 50,000 miles of use and that a person travels 13,000 miles per year in a car
A die is loaded so that the probability of any side showing is proportional to the number on that side. If the die is rolled and you win 1 for every dot showing
A normal population has a mean of 80.0 and a standard deviation of 14.0. Compute the probability of a value between 75.0 and 90.0. Compute
Provide an example of a couple of variables that we work with that could meet the binomial criteria above.
Stacy is considering inviting Ned to lunch for Valentines Day and would strongly prefer NOT to run into her ex-boyfriend Jim while having lunch with Ned
Suppose that 15% of all adults jog. An opinion poll asks a simple random sample of 500 adults if they jog.
Two different companies have applied to provide cable television service in a certain region. Let p denote the proportion of all potential subscribers