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The chance of contacting strep throat when coming into contact with an infected person is estimated as 0.15. Suppose the four children of a family come into contact with an infected person. Conduct a simulation to answer the following questions. Use the random number table below and conduct 20 trials. Clearly identify each trial on the table.
(a) Using your results, estimate the average number of children who will get the disease.
(b) What is the probability of two of the children getting the disease?
(c) What is the probability of at least two of the children getting the disease?
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sands inc. makes particleboard for the building industry. particleboard is built by mixing wood chips and resins
In a survey of 500 randomly selected high school students, it was determined that 288 played organized sports. What is the probability that a randomly selected high school student plays organized sports?
What is the probability that , of 20 randomly chosen drivers coming to an intersection under these conditions, a) At most 2 will come to a complete stop?
A truck without thelp from the truck driver (2hours per truck with the truck drivers help) Assuming M/M1:FCFS/8/8 model: What is the probability of 0,1 or 2 trucks in need of repair at any one time?
Dr. Justin Case wants to explore whether or not students perform better if they cram for a test (massed practice) or if they space their studying over weeks (distributed practice).
Using random numbers of 0.1562, 0.9821, 0.3409, 0.5594, and 0.7758, compute the time required for each of five simulated maintenance checks of the airplaine's landing gear.
Under new grading scale, how many students will have A's, B's, C's, D's and F's? Do you beleive the instructor must grade on a curve? Explain why or why not?
1.a recent study investigated the extent to which hypertension is affected by alcohol consumption. among other things
If you take a random sample of size 100 from this population, find the probability that the sample mean falls between 48 and 51.
Thus, the first question he examines is as follows: Is there a difference in the number of points students earned on their educational statistics pretests and posttests?
Determine the minimum sample size required using prior study that found that 54% of respondents said they have high-speed Internet access.
define the random variable x to be the time you get home on thursday.a is x a discrete or continuous random variable?
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