statistics and Probability

A group of adults were asked how many children they have in their families. The bar graph below shows the number of adults who indicated each number of children. 3.5 3- 2.5 2- 1.5 0.5 1 2 3 5 Number of Children How many adults were questioned? What percentage of the adults questioned had 1 children? Melanie categorized her spending for this month into four categories: Rent, Food, Fun, and Other. N The percents she spent in each category are pictured here. Food Rent 22% 27% Other Fun 35% 16% Q If Melanie spent a total of $2500 this month, how much did she spend on Rent? OC W A Frequency N L 10 13 16 19 data Q Based on the histogram above, what is the class width? Class width = What is the sample size? The data in the figure below represents the number of stars earned by 140 performers in a talent S competition. (N = 140) Percentage of Performers 0 1 2 3 Number of Stars How many performers earned exactly 3 stars? (be careful - compare the question wording to the scale on the graph)