1.Eyeglassomatic manufactures eyeglasses for different retailers. They test to see how many defective lenses they made the time period of January 1 to March 31. Table #4.1.3 gives the defect and the number of defects.
Table #4.1.3: Number of Defective Lenses
Defect Type
Number of defects
Scratch
5865
Right shaped-small
4613
Flaked
1992
Wrong axis
1838
Chamfer wrong
1596
Crazing, cracks
1546
Wrong shape
1485
Wrong PD
1398
Spots and bubbles
1371
Wrong height
1130
Right shape-big
1105
Lost in Lab
976
Sports/bubble-intern
976
Find the probability of each defect type based on this data.
1. The density of people per square kilometer for African countries is in table #2.2.11 ("Density of people," 2013). Create a frequency distribution, relative frequency distribution, and cumulative frequency distribution using 8 classes. Table #2.2.11: Data of Density of People per Square Kilometer 15 16 81 3 62 367 42 123 8 9 837 12 29 70 39 83 26 51 79 6 157 105 42 45 72 72 37 4 36 134 12 3 630 563 72 29 3 13 176 341 415 187 65 194 75 16 41 18 69 49 103 65 143 2 18 31 2. The Australian Institute of Criminology gathered data on the number of deaths (per 100,000 people) due to firearms during the period 1983 to 1997("Deaths from firearms," 2013). The data is in table#2.3.10. Create a time-series plot of the data and state any findings you can from the graph. Table #2.3.10: Data of Year versus Number of Deaths due to Firearms Year 1983 1984 1985 1986 1987 1988 1989 1990 Rate 4.31 4.42 4.52 4.35 4.39 4.21 3.40 3.61 Year 1991 1992 1993 1994 1995 1996 1997 Rate 3.67 3.61 2.98 2.95 2.72 2.95 2.33. The lengths (in kilometers) of rivers on the South Island of New Zealand that flow to the Tasman Sea are listed in table#3.1.9(Lee, 1994). Find the mean, median, and mode. Table #3.1.9: Lengths of Rivers (km) Flowing to Tasman Sea River Length (Km) River Length (km) Hollyford 76 Waimea 48 Cascade 64 Motueka 108 Arawhata 68 Takaka 72 Haast 64 Aorere 72 Karangarua 37 Heaphy 35 Cook 32 Karamea 80 Waiho 32 Mokihinui 56 Whataroa 51 Buller 177 Wanganui 56 Grey 121 Waitaha 40 Taramakau 80 Hokitika 54 Arahura 564. Print-O-Matic printing company's employees have salaries that are contained in table #3.1.1. Table #3.1.11: Salaries of Print-O-Matic Printing Company Employees _ _ _ a. Find the mean and median b. Find the mean and median with the CEO salary removed