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A random sample taken with replacement from the original sample and is the same size as the original sample is known as a:

Which of these statements does not contain a statistical mistake about correlation coefficient, r?

A gambler states that the probability of getting a “1” and a “2” when rolling two four-sided dice is 1/4 times 1/4 (or 1/16) because the dice are equally likely to land on any of the four sides and the results of the two dice rolls are independent.  Is this an example of a theoretical probability or an empirical probability?

A study of new cars to predict city gas mileage (miles per gallon) from their weight (pounds) resulted in a correlation coefficient of r = –0.4 and an r2 = 0.16. Based on this information, which of the following statements is correct?

Use the boxplots to answer the next three questions. The boxplots below represent movie runtimes (the length of a movie in minutes) for a random sample of 100 movies in each of four major genres (drama, action, comedy, children’s). Put the genres in order of their IQRs from least to greatest.

Which of the following samples taken from the sample 7, 27, 43, 49, 52, 60 could be a bootstrap sample?

What is extrapolation and why is it a bad idea in regression analysis?

A random sample of records of home sales from March 1 to July 1, 2010 from the files maintained by the Charlottesville Board of Realtors gives the Price (in dollars) and Size (in square feet) of 32 homes.  The regression model is as follows: Predicted Price = 47,820 + [ 61 × (Size) ] In this context, does the y-intercept have a reasonable interpretation?

A dot plot of the speeds of a sample of 50 cars passing a policeman with a radar gun is shown below.   What proportion of motorists were driving above the posted speed limit of 65 miles per hour?

Male players at the high school, college, and professional ranks use regulation basketballs that weigh on average 22 ounces with a standard deviation of 1 ounce.  Assume that the weights of the basketballs are Normally distributed.  If a regulation basketball is randomly selected, what is the probability that it will weigh exactly 22.5 ounces?  Choose the best answer.