1. Calculate these descriptive statistics.
   1. Mean of sales
   2. Variance of materials costs
   3. Covariance of labor costs and materials costs
   4. Mean of labor costs
   5. Total sales
2. Calculate at least two more descriptive statistics for this dataset.

Region	Sales	Labor Costs	Materials Costs
1	$2,070,279.00	$59,313.00	$25,489.00
2	$2,253,758.00	$84,294.00	$24,159.00
3	$1,158,833.00	$61,570.00	$27,903.00
4	$1,916,107.00	$75,704.00	$26,936.00
5	$2,209,766.00	$73,411.00	$20,282.00
6	$1,344,758.00	$58,071.00	$27,327.00
7	$1,525,285.00	$63,391.00	$20,948.00
8	$2,101,502.00	$71,228.00	$22,553.00
9	$2,343,835.00	$63,438.00	$26,483.00
10	$1,965,095.00	$61,898.00	$18,493.00
11	$1,426,194.00	$85,093.00	$28,694.00
12	$2,029,357.00	$59,075.00	$27,439.00
13	$986,042.00	$78,975.00	$26,713.00
14	$1,901,358.00	$86,003.00	$25,048.00
15	$1,465,856.00	$86,628.00	$27,959.00
16	$1,339,142.00	$66,014.00	$20,393.00
17	$1,200,863.00	$57,088.00	$20,524.00
18	$1,295,627.00	$68,377.00	$26,861.00
19	$892,951.00	$63,295.00	$23,854.00
20	$1,781,455.00	$68,708.00	$17,651.00
21	$2,004,767.00	$72,406.00	$24,306.00
22	$1,806,366.00	$66,453.00	$25,955.00
23	$1,589,468.00	$73,428.00	$25,793.00
24	$1,417,498.00	$80,573.00	$27,410.00
25	$1,007,695.00	$71,824.00	$27,023.00
26	$2,047,287.00	$58,911.00	$19,564.00
27	$633,691.00	$70,385.00	$18,798.00
28	$1,498,891.00	$78,440.00	$27,471.00
29	$845,502.00	$56,672.00	$28,614.00
30	$1,326,477.00	$85,644.00	$22,815.00
31	$2,269,852.00	$80,518.00	$21,864.00
32	$2,355,777.00	$64,302.00	$17,614.00
33	$537,921.00	$67,073.00	$18,759.00
34	$1,795,804.00	$87,295.00	$22,673.00
35	$1,135,573.00	$70,522.00	$24,010.00
36	$1,089,914.00	$73,215.00	$22,557.00
37	$2,011,619.00	$78,151.00	$28,035.00
38	$2,281,482.00	$85,753.00	$23,273.00
39	$921,194.00	$76,725.00	$20,106.00
40	$1,691,862.00	$67,237.00	$29,091.00
41	$1,268,440.00	$73,632.00	$28,556.00
42	$1,569,321.00	$80,347.00	$20,155.00
43	$823,068.00	$80,167.00	$19,767.00
44	$1,524,685.00	$75,288.00	$26,404.00
45	$1,908,126.00	$63,282.00	$25,759.00
46	$1,566,024.00	$69,968.00	$22,545.00
47	$1,619,888.00	$83,180.00	$28,056.00
48	$808,591.00	$68,919.00	$23,179.00
49	$1,040,239.00	$67,078.00	$19,997.00
50	$997,462.00	$75,289.00	$29,025.00
51	$801,630.00	$68,497.00	$18,740.00
52	$1,886,438.00	$67,231.00	$27,850.00
53	$864,289.00	$83,353.00	$21,987.00
54	$544,624.00	$81,315.00	$27,823.00
55	$1,287,403.00	$87,633.00	$22,756.00
56	$890,054.00	$56,083.00	$20,547.00
57	$2,239,090.00	$86,178.00	$27,994.00
58	$2,262,311.00	$57,910.00	$24,894.00
59	$1,080,190.00	$87,059.00	$24,367.00
60	$2,147,915.00	$80,572.00	$25,795.00
61	$2,396,990.00	$80,957.00	$19,901.00
62	$1,417,255.00	$58,839.00	$27,052.00
63	$1,157,278.00	$69,583.00	$28,822.00
64	$1,134,178.00	$80,016.00	$29,467.00
65	$2,345,258.00	$73,865.00	$19,903.00
66	$1,672,436.00	$81,601.00	$26,807.00
67	$2,345,143.00	$63,813.00	$18,103.00
68	$2,261,119.00	$76,714.00	$26,727.00
69	$1,866,284.00	$81,186.00	$25,151.00
70	$1,580,449.00	$73,410.00	$25,915.00
71	$646,655.00	$75,838.00	$26,430.00
72	$1,056,578.00	$74,259.00	$28,569.00
73	$1,732,073.00	$70,017.00	$22,004.00
74	$2,101,072.00	$87,546.00	$17,993.00
75	$718,115.00	$57,482.00	$22,655.00
76	$1,976,968.00	$77,448.00	$24,843.00
77	$2,021,155.00	$81,244.00	$24,262.00
78	$920,032.00	$68,843.00	$28,814.00
79	$1,176,260.00	$83,347.00	$19,435.00
80	$1,795,298.00	$84,689.00	$21,987.00
81	$1,238,913.00	$76,721.00	$22,590.00
82	$1,193,492.00	$73,115.00	$28,932.00
83	$1,917,295.00	$84,008.00	$21,393.00
84	$1,917,107.00	$63,529.00	$22,760.00
85	$1,111,683.00	$75,823.00	$20,284.00
86	$2,358,103.00	$62,489.00	$24,670.00
87	$1,512,228.00	$78,675.00	$22,574.00
88	$2,365,887.00	$77,698.00	$22,541.00
89	$1,220,109.00	$69,343.00	$18,787.00
90	$1,582,269.00	$87,323.00	$20,135.00
91	$1,694,185.00	$59,479.00	$23,110.00
92	$1,172,850.00	$56,737.00	$21,527.00
93	$719,072.00	$88,180.00	$21,478.00
94	$761,940.00	$70,907.00	$29,386.00
95	$654,623.00	$65,953.00	$19,344.00
96	$1,754,492.00	$63,005.00	$19,231.00
97	$2,100,389.00	$73,282.00	$20,066.00
98	$2,112,363.00	$72,606.00	$24,597.00
99	$1,900,468.00	$76,151.00	$23,548.00
100	$927,771.00	$85,190.00	$26,457.00
101	$1,335,138.00	$64,275.00	$24,610.00
102	$1,021,173.00	$77,647.00	$19,816.00
103	$1,146,799.00	$73,662.00	$24,943.00
104	$2,066,518.00	$57,254.00	$17,847.00
105	$1,932,132.00	$75,716.00	$23,913.00
106	$919,282.00	$82,506.00	$29,471.00
107	$2,141,066.00	$75,596.00	$27,372.00
108	$599,061.00	$62,359.00	$24,159.00
109	$1,411,500.00	$61,139.00	$26,711.00
110	$2,389,813.00	$72,706.00	$18,468.00
111	$2,377,562.00	$78,447.00	$27,798.00
112	$535,614.00	$76,687.00	$21,539.00
113	$2,147,780.00	$58,931.00	$29,267.00
114	$2,137,903.00	$57,422.00	$28,743.00
115	$1,230,437.00	$73,808.00	$29,166.00
116	$995,140.00	$62,161.00	$17,868.00
117	$1,387,932.00	$69,869.00	$26,738.00
118	$550,332.00	$86,126.00	$22,865.00
119	$653,114.00	$74,309.00	$26,982.00
120	$1,610,589.00	$85,271.00	$26,716.00
121	$1,459,722.00	$69,595.00	$22,494.00
122	$1,051,652.00	$87,409.00	$26,092.00
123	$941,630.00	$68,080.00	$27,530.00
124	$1,254,743.00	$59,737.00	$18,836.00
125	$1,218,564.00	$64,344.00	$20,925.00
126	$1,203,395.00	$59,236.00	$25,071.00
127	$550,153.00	$56,128.00	$23,266.00
128	$586,207.00	$72,952.00	$23,341.00
129	$2,128,845.00	$72,209.00	$28,773.00
130	$2,193,410.00	$84,652.00	$20,450.00
131	$533,211.00	$65,444.00	$20,040.00
132	$1,499,001.00	$85,194.00	$23,602.00
133	$1,232,044.00	$59,434.00	$19,998.00
134	$1,173,982.00	$83,325.00	$21,826.00
135	$1,735,144.00	$80,895.00	$22,102.00
136	$1,824,943.00	$60,482.00	$20,154.00
137	$1,943,972.00	$75,832.00	$26,613.00
138	$1,783,202.00	$70,814.00	$28,130.00
139	$615,007.00	$72,724.00	$28,755.00
140	$1,073,409.00	$73,356.00	$24,640.00
141	$1,324,584.00	$56,036.00	$28,007.00
142	$1,572,545.00	$59,405.00	$27,291.00
143	$2,142,207.00	$83,025.00	$27,538.00
144	$1,322,803.00	$82,618.00	$28,963.00
145	$955,162.00	$69,877.00	$20,216.00
146	$1,204,299.00	$69,888.00	$23,943.00
147	$1,247,238.00	$83,553.00	$22,312.00
148	$668,568.00	$71,330.00	$19,654.00
149	$901,037.00	$68,961.00	$25,080.00
150	$1,470,753.00	$60,016.00	$22,154.00
151	$2,241,978.00	$76,705.00	$17,901.00
152	$999,515.00	$59,058.00	$20,996.00
153	$2,281,842.00	$75,257.00	$23,574.00
154	$1,633,531.00	$77,013.00	$23,619.00
155	$1,193,062.00	$69,213.00	$25,855.00
156	$2,191,119.00	$81,676.00	$23,635.00
157	$1,030,840.00	$70,962.00	$19,786.00
158	$1,135,681.00	$80,343.00	$23,138.00
159	$2,300,149.00	$88,624.00	$22,954.00
160	$996,367.00	$59,992.00	$18,193.00
161	$1,950,032.00	$72,645.00	$22,088.00
162	$1,902,193.00	$70,097.00	$18,435.00
163	$1,943,646.00	$60,325.00	$27,499.00
164	$656,331.00	$73,410.00	$24,471.00
165	$1,407,348.00	$78,931.00	$22,677.00
166	$2,145,281.00	$88,810.00	$19,953.00
167	$1,771,726.00	$59,593.00	$25,434.00
168	$2,249,655.00	$69,797.00	$28,933.00
169	$1,133,698.00	$70,742.00	$18,208.00
170	$1,373,116.00	$76,342.00	$24,072.00
171	$1,606,126.00	$68,633.00	$22,686.00
172	$687,442.00	$70,880.00	$23,726.00
173	$2,207,122.00	$85,731.00	$22,326.00
174	$2,111,579.00	$64,977.00	$22,572.00
175	$1,596,675.00	$85,872.00	$21,387.00
176	$2,123,277.00	$58,092.00	$23,115.00
177	$2,389,076.00	$80,723.00	$27,666.00
178	$1,870,329.00	$59,693.00	$25,212.00
179	$1,154,544.00	$66,204.00	$21,491.00
180	$1,143,138.00	$74,878.00	$22,836.00
181	$1,294,604.00	$88,236.00	$26,604.00
182	$1,966,778.00	$70,841.00	$24,158.00
183	$515,820.00	$87,052.00	$28,152.00
184	$2,223,939.00	$76,689.00	$23,061.00
185	$1,956,787.00	$57,714.00	$19,884.00
186	$1,188,708.00	$64,546.00	$24,425.00
187	$1,597,823.00	$81,454.00	$27,510.00
188	$1,360,436.00	$81,669.00	$21,335.00
189	$519,655.00	$74,236.00	$17,838.00
190	$651,626.00	$57,153.00	$18,357.00
191	$1,063,954.00	$75,651.00	$18,936.00
192	$1,423,040.00	$84,311.00	$26,813.00
193	$645,388.00	$81,524.00	$24,561.00
194	$1,283,879.00	$85,012.00	$27,877.00
195	$2,049,640.00	$72,002.00	$21,578.00
196	$2,412,435.00	$78,743.00	$21,039.00
197	$887,789.00	$56,150.00	$18,591.00
198	$2,290,641.00	$63,763.00	$20,787.00
199	$1,590,895.00	$84,386.00	$22,510.00
200	$2,361,150.00	$68,802.00	$19,429.00
201	$2,142,241.00	$64,416.00	$24,386.00
202	$2,018,946.00	$72,226.00	$21,395.00
203	$1,426,128.00	$56,606.00	$23,506.00
204	$2,307,175.00	$69,290.00	$23,132.00
205	$2,359,559.00	$56,410.00	$28,282.00
206	$821,665.00	$74,653.00	$17,632.00
207	$1,866,668.00	$59,957.00	$26,226.00
208	$604,250.00	$76,469.00	$28,895.00
209	$1,969,455.00	$62,555.00	$25,287.00
210	$2,284,304.00	$58,962.00	$18,274.00
211	$851,326.00	$78,286.00	$22,293.00
212	$804,827.00	$78,756.00	$21,863.00
213	$703,472.00	$71,453.00	$28,461.00
214	$732,869.00	$60,495.00	$25,047.00
215	$1,532,699.00	$69,098.00	$20,994.00
216	$1,001,095.00	$81,025.00	$25,177.00
217	$2,017,591.00	$83,820.00	$23,090.00
218	$1,395,371.00	$83,098.00	$26,715.00
219	$880,326.00	$68,715.00	$18,865.00
220	$1,525,176.00	$78,973.00	$26,175.00
221	$1,428,854.00	$83,654.00	$22,420.00
222	$1,319,132.00	$56,985.00	$25,476.00
223	$515,776.00	$79,818.00	$23,892.00
224	$2,123,854.00	$63,507.00	$23,303.00
225	$2,010,794.00	$78,581.00	$20,786.00
226	$990,785.00	$63,971.00	$17,590.00
227	$603,132.00	$87,000.00	$25,750.00
228	$1,550,614.00	$87,257.00	$17,557.00
229	$1,360,328.00	$60,054.00	$28,009.00
230	$2,406,056.00	$85,079.00	$27,580.00
231	$1,375,610.00	$82,593.00	$24,851.00
232	$1,819,798.00	$73,386.00	$27,438.00
233	$1,150,208.00	$62,494.00	$20,810.00
234	$1,052,096.00	$64,618.00	$21,318.00
235	$689,215.00	$84,406.00	$22,988.00
236	$628,382.00	$77,514.00	$22,015.00
237	$1,319,461.00	$61,778.00	$17,641.00
238	$2,172,774.00	$66,558.00	$19,540.00
239	$1,531,918.00	$82,419.00	$29,276.00
240	$1,993,862.00	$58,677.00	$28,344.00
241	$958,446.00	$56,712.00	$28,564.00