A few months ago, Mike and Dez started a dog walking business. For each dog that they have agreed to walk, they recorded the total time (in hours) they walked that dog over a one-week period. These values are given below. Use the calculator to draw a histogram for these values using 5 classes.

1.6,4.0,4.7,1.6,2.5,2.2,0.6,2.0,3.0,2.6