Which of the following best describes the graph shown below?

Joe’s annual salary was $40,000 this year.  Next year, he will get a 4% raise.  What will his annual salary be next year?

Solve for x:  27x=14{“version”:”1.1″,”math”:”27x=14″}

Convert to a decimal, rounded to the nearest hundredth:  711{“version”:”1.1″,”math”:”711″}

What is 7% of 1400?

  The survival curve above is from a clinical trial testing the difference between 10 and 80 mg of the statin drug Lipitor for the prevention of a Major Cardiovascular Event (MCE). The trial starts with ~5000 subjects in each group, and after 5 years of the trial we can see there are only 2300 individuals remaining in each group who are ‘at risk’- a reduction of just over 50% (~2500 participants in each group). However, if we look closely at the survival curve, only about 10% of subjects (~500 per group) actually experienced an MCE. Using your knowledge of survival analysis, explain and provide some rationale for this apparent discrepancy… i.e. why is there such a dramatic difference in subjects who are no longer on trial because they experienced an MCE (~500 per group) vs. the total number who are no longer ‘at-risk’ (~2500 per group)?   

What is the mode of the following set of numbers: 4, 4, 6, 8, 9, 4, 7?

What is the median of the following set of numbers: 7, 3, 9, 5, 2?

Which measure of dispersion is calculated as the difference between the highest and lowest values in a data set?

What is the mean of the following set of numbers: 4, 8, 6, 5, 3?