What is the average number of sinkholes per year?

What is 4.15 rounded to the tenth place? What is a leaf diagram? What is the similarity between bar graphs and histograms? What is the probability that a family of 2 children has no boys? What is certain probability? Are all voluntary response sample bad sample? How do you find the average when maximum and minimum values are known? Data refers to things that can be counted.? If you had unprotected sex and then the next day you get your period does this mean that you are not pregnant? What is resistant measure? What is the purpose of a pie chart? The variance which measures the deviation of the rate actually paid to labor as from the standard hourly rate is known as? What role do z-scores play in the transformation of data from multiple distributions to the standard normal distribution? What are the main components of a graph? What makes a graph misleading? What is definition of biased? What is a event occurs last in the Apology? What is a Fixed variable in a science experiment? What is the role of the stochastic error term in regression analysis? When calculating the mean the researcher should use data measured at which level?