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1. A seafood omelet will be made with two eggs, a piece of salmon, and a slice of cheese by choosing the items at random from four eggs, two pieces of salmon, and three slices of cheese. One egg, one piece of salmon, and one slice of cheese have gone bad. What is the probability that the omelet will contain at least one bad item?
2. (Coincidence). Three families, each with three members, are lined up at random for a picture. What is the probability that members of each family happen to be together (that is, not separated by someone from another family) in the picture?
Suppose a random sample of size 36 is drawn from a population with a mean of 278. If 86% of the time the sample mean is less than 280, what is the population standard deviation?
The daily revenue totals for the next 30 days will be monitored. What is the probability what the mean daily revenue for the next 30 days will exceed $7500?
With the conditions of problem 1, if 20 students are selected , what is the probability that the mean of their scores is greater than 18?
A sample of 40 observations is selected from one somewhat normal population. The sample mean is 102 and the sample standard deviation is 5.
A company producing a standard line and a deluxe line of dishwasher has the following time requirements (in minutes) in departments where either model can be processed
If you select a random sample of 200 children and observe the number of diagnostic services each of them receives, what is the probability that the mean number of diagnostic services is more than 1.72?
it is claimed that in a bushel of peaches less than ten percent are defective. a sample of 400 peaches is examined and
Sketch the direction fields for the following ODE's. Make use of isoclines wherever possible.
A major study examined the relationship between cause of death (heart attack, cancer, stroke, accident, etc.) and age. A good way to graphically represent the relationship is with
Xr17-02 Pat Statsdud, a student ranking near the bottom of the statistics class, decided that a certain amount of studying could actually improve final grades.
When coaching or training athletes, the tests employed to predict performance or determine training methods incorporate statistical methods. Why are these methods so effective?
let x be the damage incurred in in a certain type of accident during a given year. possible x values are 0 1000 5000
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