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The N students need to be divided into two groups: X, and Y. However, they have several issues with how they want to be arranged. In particular, two students, student A and student B, really enjoy working together, and would like to be in the same group. This is not always possible, as the teaching team wants to fairly arrange the students, and not favor any particular pair or group. Please help them divide up the class.
Q1. How many different sizes of group X are possible (including 0)?
Q1.1 If each student is equally likely to be put into either group X or group Y, what is the probability that group Xhas exactly 2 people?
Q1.2 If after dividing all of the students into groups X and Y, group X has exactly 2 people, what is the probability that those two people are students A and B?
Suppose systolic blood pressure, birth weight (oz), and age (days) are measured for 16 infants and the data are shown in the following table
Assume that replacement time for TVs are normally distributed with a mean of 8.2 years and a standard deviation of 1.1 years. The probability a randomly selected TV will have replacement time less than 5.5 years to be .0071.
Give an implementation of adjoin-set using the ordered representation. By analogy with element-of-set? show how to take advantage of the ordering to produce a procedure that requires on the average about half as many steps as with the unordered r..
To produce a consistent product, the variance in cream filling is carefully monitored. In a random sample of 23 cream puffs, the variance in filling was s2 = 0.
With this information, by constructing a 2 by 2 table, compute the predicative value positive and predictive value negative of the ELA in hypothetical population of 1000000 blood donors.
Is there evidence of a significant difference in the variance of the access read times for the three file sizes? Test at the 95% confidence level.
According to the test, their IQ scores are 120, 108, 135, 98 and 110. What is the sum of squares of the deviations of their IQ scores
Write a 3 page paper with a title page and bibliography. Total of 5 pages will be turned in.
After every score in a sample has been multiplied by 4, the mean is found to be M =48 and the standard deviation is s =12. What were the values for the mean and standard deviation for the original sample?
Researchers conducted an experiment to determine the content uniformity of film-coated tablets produced for a cardiovascular drug used to lower blood pressure
When the x's are equally spaced, the calculation of and can be simplified by coding the x's by assigning them the values ... , -3, -2, -1, 0, 1, 2, 3, ... when n is odd, or the values ... , -5, -3, -1, 1, 3, 5, ... when n is even. Show that with..
Why is the standard error of estimate higher when the predictive quality of variables is lower?
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