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Suppose x has a binomial probability distribution with n = 400 and p = 0.70.  Use the normal approximation to the binomial to find P (X 

According to Chebyshev’s Rule, we expect ________ % of the observations to fall within two standard deviations of the mean, if the data do not have a symmetric and mound shaped distribution.

Assume we are given the following information for yields of corn (in bushels per acre):    Median = 150     Lower quartile = 130     Upper quartile = 170    Lowest yield = 80     Highest yield = 250 Construct a box plot for these data.  Based on this box plot, is the lowest yield of 80 bushels per acre a suspect or highly suspect outlier?

Find the mean of a binomial probability distribution with a sample size of n = 20 and a probability of success of 0.40.

If when one of two events occurs in an experiment, the other event cannot occur, we call these two events

Suppose that 20% of the Labrador Retrievers in the U.S. have a particular genetic defect.  We randomly select 7 Labs from the population consisting of all Labs in the U.S.  What is the probability that at least 1 of the 7 dogs in this sample has the genetic defect?

The                                   for a discrete random variable (X) is a table, graph, or formula that specifies the probability of observing each value of X.                   

The American Angus Association wants to determine the proportion of their members who breed their cows using artificial insemination (AI).  They randomly sample 200 of their members and ask them whether or not they breed their cows using AI.  120 of the 200 members sampled said “yes”.  The proportion of the 200 members who breed their cows using AI is an example of a ____________.

Assume that 16% of all pigs die between birth and weaning.  In a random sample of 300 births, let X be the number of pigs that die between birth and weaning.  Using the normal approximation to the binomial, find the approximate probability that the number of pigs in the sample of 300 that die between birth and weaning is greater than or equal to 50.

Assume that the mean length of time required to complete the Columbus Marathon is 4.5 hours and that the standard deviation of the times required to complete the race is 0.70 hours.  Calculate the z-score for a time of 2.3 hours.  Based on the z-score, is this time of 2.3 hours an outlier?