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A professor told a class that she found a correlation coefficient of .20 between the alphabetical order of a person's last name and that person's cumulative point total for 50 students in a general psychology course.
One student in the class wondered whether the correlation coefficient was reliable; that is, would a nonzero correlation be found in other classes? How can reliability be determined without calculating an r on another class?
Criticize the following definitions in light of the eight rules for lexical definitions:- A cynic is a person who knows the price of everything and the value of nothing.
For events A and B, Pr(A intersection B) = p, Pr(A' intersection B) = P - 1/8 and Pr(A intersection B') = 3p/5. If A and B are independent, then the value of p is ___.
what is the probability that student from this class will pass not fail?a 0.45b 0.60c 0.72d
Apply the table compression algorithm in Figure 5.22 to the table shown in Figure 5.20, presenting rows in the order 1, 5, 2, 4, 3. Compare the success of compression with the result presented in Figure 5.23.
The two blocks A and B each have a mass of 5 kg and are suspended from parallel cords. A spring, having a stiffness of k = 60 N/mc , is attached to B and is compressed 0.3 m against A as shown.
The chance that all 50 residents in a neighborhood end up being the sample of residents selected is: the population of the suburb divided by 50.
bentley foods inc. a large manufacturer of frozen foods has developed a new line of frozen pizza. management has agreed
assume that a procedure yields a binomial distribution with a trial repeated ntimes. use a binomial probabilities table
What is the probability that a subscriber rented a car during the past 12 month for business or personal reasons?
Construct the 95% Confidence Interval to estimate the mean number of close friends made by the population of college students during their freshman year on campus.
Two chi-square distributions were plotted on the same chart. One distribution was for 3 degrees of freedom and the other was for 12 degrees of freedom. Which distribution would tend to approach a normal distribution?
You can help him determine this by calculating the following probability: What is the probability of Jim collecting a sample mean from those 50 students that is less than or equal to 48.7 gallons?
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