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A factory packs bolts in boxes of 500. The probability that a bolt is defective is 0.002. Find the probability that a box contains 2 defective bolts.
A random variable X has the following cumulative distribution function
Suppose that the blood types are independent and that both the husband and the wife follow this distribution of blood type.
Samples of size 49 are drawn from a population with a mean of 36 and a standard deviation of 15. What is the probability that the sample mean is less than 33?
Two boys play basketball in the following way. They make turns shooting and stop when a basket is made.
A record store owner wants to determine consumer tastes. She decides to observe customers in her store on a particular day and record the number of minute
The average profit per unit for Product A is $5.32, Product B is $7.98, and Product C is $9.69. If the percentages of each sold are 36, 29, and 35 respectively
The Wilhelms Cola Company plans to market a new pineapple-flavored cola this summer. The decision is whether to package the cola in returnable
A committee consists of five Chicanos, two Asians, three African Americans, and two Caucasions.
If 10% of the people who take a certain drug develop at least one of the side effects. Find the probability that in a sample of 20 people who take the drug:
Over a long period of time, it has been determined that 70% of Lawyers who take the bar examination pass the examination
What is the probability of rolling the number 4 (on one die) and the number 3 (on the other die) with a normal pair of dice if you roll the dice 100 times?
Suppose I have a 10-sided die. It's clear enough that the odds of rolling a 1 are 10% for any single roll.
For the eight compentecies listed above, what are the means and standard deviations? What two compentencies have the highest means?
A die is tossed 7 times, find the chance that
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.