Avoid histograms with small bin widths that group data into lots of bins. A histogram constructed with small bin widths will show the distribution as a “pancake.” so no it does not help us see the pattern in the data.
Sales tax is .30 cents because 2.39+1.59=3.98 multiply by the sales tax which would be .075 after you move the decimal. you get .2985 cents so round it up to .30 cents
