The number of car crashes in an intersection for different years are reported as follows: 16, 15, 15, 18, 16, 16, 17, 20, 16, 17, 14, 15, 16, 17, 24, 18, 15, 15, 15, 14 a) Calculate the numerical summaries of the data (mean, median, mode, range, IQR, variance, standard deviation, and five number summary). (1.5 points) b) Without using computer, construct a dot plot and a stem-and-leaf plot of the car crash data. (1 point)to select without - objects from a obimes HBA)P(A2) +... event, then (7 points) Below are the numeric summaries of 7 samples of data from 7 different populations. Each samp has 1,000 observations. The summaries are the first quartile Q1, the median, the third quartile 03, the me and the standard deviation sd. Below these are histograms of 5 of these 7 samples, labeled "a" to "e". Mat histogram to the correct summary by writing the correct letter in each row of summaries. Two rows show be left empty. You do not need to explain your choices. median 03 mean 4.69 4.69 4.69 4.74 0.44 1.45 2. 12 2.99 2.38 1.28 3.92 4.97 6.06 4.98 1.59 2.33 4.80 7.44 4.92 2.91 3.36 3.86 8.67 5.98 2.67 0.41 1.05 2. 14 1.50 1.49 0.00 0.02 9.54 3.35 4.39QUESTION 1 The tool within the "Assessing Opportunities" step of the Strategic Sourcing Process that graphically orders categories of numerical data in descending order so that the most important categories are easily recognized is called a: A Assessment Table B. Procurement Graph OC. Pareto Chart D. Purchasing Chart OE. Numerical Summary Graph