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Write a function (method) called calculate_stats that accepts two numbers and returns their sum and difference. Paste the completed function below.

A sample of 20 students was surveyed, and a 90% confidence interval for the mean daily amount college students spend on coffee was found to be ($3.50, $8.25). Each of the following statements contains a misunderstanding of what this confidence interval represents. Choose one statement, identify the error, and explain why it is incorrect. Additionally, describe how the statement could be corrected. We are 90% confident that all college student coffee purchases per day fall between $3.50 and $8.25. 90% of all college students will spend between $3.50 and $8.25 on coffee each day. We are 90% confident that the average amount spent on coffee by students in this sample was between $3.50 and $8.25.

Write a for loop that prints the numbers 2 through 15 (inclusive), each on a new line. Paste the completed for loop below.

The Bangladesh famine of 1974 to 1975 was largely driven by floods destroying crops, which led to prices going up. Which of the following statements accurately describes what was going on with the demand and supply curves during this period?

In a village in rural Malawi, farmers switched from using traditional seeds to grow maize to a new, improved seed variety adapted to Malawi’s climatic conditions. How does this affect production yield, and how is it represented on an agricultural production function graph?

Which of the following would result in a shift in the supply curve for soybeans to the right (outward)?

In the space below, answer A & B to explain the physical activity trends. A. List four demographic variables and who within that variable is more or less active. An example: Where one lives (geography). Individuals in western states are more active than individuals in southern states. *Use demographic variables besides geography to earn credit.  B. Briefly describe the changes in overall physical activity participation rates over the last 60 years. Include the four physical activity domains in your answer. 

Which of the following groups is the least affected by famines?

 According to Amartya Sen, famines can occur even when there is no shortage of food.  Is this True or False?

Although global fertilizer use has grown fast and is responsible for much of the increased crop yields, we see some notable differences in use across regions, particularly in Africa,  Asia, and North America. What are these differences?