A delivery truck is transporting boxes of two sizes: large and small.  The large boxes weigh 50lbs each, and the small boxes weigh 35lbs each. There are 120 boxes in all.  If the truck is carrying a total of 5025lbs in boxes, how many of each type of box is it carrying?

Understanding descriptive statistics, their measures of center and their variability, helps form the foundation of statistical analysis. Descriptive statistics tell us how frequently an observation occurs, what is considered average, and how far data in our sample deviate from being average. With these statistics, we are able to provide a summary of characteristics from both large and small datasets. Measures of central tendency and variability provide valuable information on their own, and form the cornerstone of the quantitative structures that we build in our research studies.Required ResourcesRead/review the following resources for this activity:OpenStax Textbook: Chapter 2LessonMinimum of 1 scholarly sourceIn your reference for this assignment, be sure to include both your text/class materials AND your outside reading(s).Initial Post InstructionsFor this Discussion, you will examine central tendency and variability in terms of pulse rate.Find and record the pulse rate of 10 different people where you work. Tell us a little about the population from which you drew your data. Describe your findings in terms of central tendency and variability.Consider using some of the following to help you form your initial discussion post:What are your measures of central tendency (i.e., mean, median, and mode)? Which might be the better measure for central tendency and why?What is the standard deviation of your data? How variable are the data (range)?Are there any outliers? Investigate possible reasons for these outliers, and things that might limit them if further study were to be carried out.What are some variables that should be considered in discussing your measures of central tendency and variation? Is there any skewness in your measured data?How would you describe this data (i.e. what insights did you gain from this data)?Follow-Up Post InstructionsRespond to at least two peers or one peer and the instructor. Further the dialogue by providing more information and clarification.

1.  The following table describes hypothetical age-specific rates of heart disease in India and the United States in 2009. Also included are hypothetical age distributions for the two countries and  the entire world population. Age Group (in years) % of Population in Age Group Heart Disease Rate per 100,000 person-years INDIA U.S.A. WORLD INDIA U.S.A. < 30 60% 30% 50% 50 75 30-55 30% 40% 30% 80 150 > 55 10% 30% 20% 120 400 ·  Calculate the crude rate of heart disease for each of the two countries. Suppose that you want to compare the rate of heart disease in India to that in the United States. You know that age is an important risk factor for heart disease. Examine the age distribution of each country’s population. ·  Should you use the two crude rates to compare the two countries? Why or why not? ·  Calculate an age-adjusted rate for heart disease in each country. Use the age distribution of the entire world as your standard. ·  Based on these answers, would you say that the age differences between India and the United States account for the entire difference in crude heart disease rates between the two countries?  Why or why not?