A florist determines the probabilities for the number of flower arrangements they deliver each pa number in the boom Part 1: 4 points day. Part 2: 4 points Part 3: 2 points D) Part 4: 2 points 12 points 19 20 21 20 23 P) 0.25 0.22 0.30 0.12 0.11 Find the mean, variance, and standard deviation of the distribution rounded to 4 decimal places. Mean - Variance - Standard Deviation = Approximately how many arrangements should the florist expect to deliver each week, rounded to the nearest whole number?