15. The histogram below shows the average dollars spent on coffee per month. Frequent 15 20 25 30 35 40 45 50 55 $ Spent on Coffee Figure 1: The graph is a histogram that shows the average dollars spent on coffee per month. The horizontal x-axis shows dollars spent on coffee with bins ranging from 5 to 55 in increments of 5. The vertical y-axis shows the height of each bin, which represents frequency and ranges from 0 to 45 in increments of 5. The data is summarized in the table below. All data are approximate. $ Spent on Coffee (Bin) 5 10 15 20 25 30 35 45 50 55 Frequency 20 24 26 30 40 27 37 26 32 36 30 Question: What is most observed value for the dollars spent on coffee per month? 0 5 O 25 O 35 O 55