Select, construct and justify an appropriate graphical display to describe the distribution of a numerical dataset, including dot plot, stem-and-leaf plot, column chart and histogram.

A biologist records the daily water consumption (in litres) of 24 plants over one month. The measurements range from 0.8 L to 4.2 L, with several plants consuming exactly 1.5 L, 2.0 L, and 2.8 L. Which graphical display is most appropriate to show the distribution and identify the most frequently occurring values?

A sports coach records the number of training sessions attended by players in a basketball squad over a six-week period. Use the data to construct a histogram with appropriate class intervals and explain whether the distribution shows that most players are meeting the coach's expectation of at least 10 sessions.