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A sports psychologist performed a study of some visualization techniques that she developed to improve athletic performance
A company has a turnover of 10% of their hourly employees annually. Thus for any hourly employee chosen at random management estimates a probability
Polychlorinated biphenyl (PCB) is among a group of organic pollutants found in a variety of products, such as coolants, insulating materials, and lubricants
A recently published study shows that a country's true unemployment rate to be 12%. Assume that 300 members of the labour force are selected at random.
The Complaints Department of a popular used car dealer receives most complaints about the electrical system, particularly the starter
The manager of the local Tim Horton's found that 60% of her employees call in sick on Fridays before the long weekend.
Harvard University published the age profile of it's first time students. A random sample of 33 students has ten students in their thirties, fifteen students
J&G Painting has hired you as a consultant. You have been gathering data on its painting speed in an effort to help the company be more accurate
A bridge hand consists of 13 cards dealt at random from an ordinary deck of 52 playing cards.
Jill wants to do her MBA in Statistics at a B.C. university. She applies to two universities that offer post-graduate degrees in Statistics.
Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion of its customers who decide to eat in the restaurant
Let x be a random variable with the following probability distribution:
Suppose that a certain college class contains 59 students. Of these, 35 are seniors, 30 are business majors, and 12 are neither
At a certain college, 51% of the students are female and 17% of the students major in civil engineering. Furthermore, 10% of the students both are female
Consider the xbar chart for the piston-ring example as follows, let ring diameter be normally distributed, and the sample size is n = 5.
Let B and C be two events such that P(B) = 0.50 and P(C) = 0.05.
A popular dice game, called "craps," is played in the following manner. A player starts by rolling two dice. If the result is a 7 or 11, the player wins.
Suppose that the genders of the three children of a certain family are soon to be revealed. Outcomes are thus triples of "girls" ( g) and "boys" (b )
We know the IQ of people is normally distributed with mean 120 and standard deviation (SD) of 25. Calculate the probability that an adult will have
Out of 11 people applying for an assembly job, 3 cannot do the work. Suppose two persons will be hired.
Acording to a recent survey, 70% of all customers will return to the same grocery store. Suppose 10 customers are selected at random, What is the probability:
Access time to a supercomputer mainframe is normally distributed with an average(mean) of 92 minutes a day with standard deviation of 11 minutes
At Acme Inc., women employees are three times as likely to take advantage of computer training courses as men employees
The cell phone industry is growing at a rapid pace. Current estimates suggest that 60% of people have cell phones
For a randomly selected student in a particular high school, let Y denote the number of living grandparents of the student