6. The histogram below shows the heights of various plants at a garden store. The numbers of plants are all whole numbers. a. Convert this histogram to a frequency table. (1 point) b. Determine the mean, median, mode, and standard deviation of these heights. Round all answers to the nearest tenth, when applicable. (2 points) Heights of Plants 12 10 Number of Plants 2 10 20 30 40 50 0 TO 50 90 100 Height (cm)