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Playground:
Some people have been complaining that the children s playground at a municipal park is too small and is in need of repair. Managers of the park decide to survey city residents to see if they believe the playground should be rebuilt. They hand out questionnaires to parents who bring children to the park. Describe possible biases in this sample.
in a study of exercise a large group of male runners walk on a treadmill for 6 minutes. their heart rates in beats per
What are the benefits and drawbacks of traditional and authentic assessments in math and science?
Assuming that n = 6 for both samples, calculate each of the sample variances, then calculate the pooled variance. Because the samples are the same size, you should find that the pooled variance is exactly halfway between the two sample variances.
Find the mean score, X , of the data in the frequency distribution above and find the standard deviation of the scores in the frequency distribution above.
A student must choose one of the subjects, art, geology, or psychology, as an elective. She is equally likely to choose art or psychology and twice as likely to choose geology.
What is the probability that he can open the lock at random if he knows that the numbers in the combination cannot be repeated?
suppose x the number of flaws in a roll of polyethylene insulated cable follows a poisson process where lambda is 1.1
Find out the crude death rate, age specific death rate, standard death rate and adjusted death rate.
a trucking firm delivers appliances for a large retail operation. the packages or crates have a mean weight of 300 lb.
suppose that wait times for customers at a grocery store cashier line are uniformly distributed between one minutes and
the waiting times in minutes for 11 customers at a supermarket are 13951547911142 and 6. determine the approximate
Determine the binomial distribution for any random data. Also determine the probability greater than 4.
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