Please download the Dalgleish er of. tree data from the class website and save it to your hard drive {the file is titled dalgleish et al trees.csv}. This dataset describes the species and diameter-at-beast-height {dbh, about 1.4 m above the ground, measured in cm] of 5681 individual trees at a site in Maine. It also contains age, reproductive data, and disease status for American chestnut [Costooeo dentoto] trees at this site, as well as map coordinates for each tree. We will use these data to practice working with large datasets and calculating summary,r statistics. 2. Follow the steps below to bttild and present a frequency distribution for dbb in white spmce. a. *[1 point] After you read in the data, use the lter\" and arrange\" functions from the dpbv package to create a new data frame that contains only: data for white spruce trees and has the rows arranged in order of increasing dbb [i.e., the rst row has the smallest tree, the last has the largest]. There should be a total of 4D values, ranging from 10.668 33.2?4 cm). Please write the rst 5 dbb values here. b. *[4 points] Use the 4f] dbb values that you obtst'uted in question 2a to build a frequencyr m for dbb in white spruce at this site. Please begin your table at dbb s 12 cm, use 4 cm bins, and include columns for both absolute and relative frequency. Please do not use R for this question. See the Guidelines for reporting statistical resulos on the website Cheat sheets tab for table formatting guidelines, and round decimals to 3 decimal places