In: Statistics and Probability
Suppose that the U.S. Environmental Protection Agency reported the following sulphur dioxide emissions (in tons) for the 48 states in the continental United States for a particular year.
| State | SO2 Emissions |
State | SO2 Emissions |
State | SO2 Emissions |
State | SO2 Emissions |
|---|---|---|---|---|---|---|---|
| AL | 106,169 | IN | 268,231 | NC | 48,168 | RI | 30 |
| AR | 73,592 | KS | 30,035 | ND | 55,217 | SC | 26,793 |
| AZ | 23,703 | KY | 188,129 | NE | 65,838 | SD | 15,356 |
| CA | 241 | LA | 80,147 | NH | 3,181 | TN | 56,419 |
| CO | 38,301 | MA | 10,855 | NJ | 2,446 | TX | 365,521 |
| CT | 1,121 | MD | 25,131 | NM | 17,749 | UT | 21,158 |
| DE | 2,254 | ME | 887 | NV | 7,441 | VA | 38,792 |
| FL | 89,079 | MI | 194,404 | NY | 17,811 | VT | 16 |
| GA | 80,963 | MN | 24,380 | OH | 282,000 | WA | 2,873 |
| IA | 76,858 | MO | 141,444 | OK | 74,439 | WI | 62,448 |
| ID | 21 | MS | 77,500 | OR | 14,018 | WV | 86,215 |
| IL | 135,880 | MT | 16,230 | PA | 252,092 | WY | 40,685 |
Use these data to calculate the values (in tons) in the five-number summary. (Hint: See Example 3.13.)
smallest observation
slower quartile
median
upper quartile
Largest observation tons
Sort the S02 conc
| AL | 16 |
| AR | 21 |
| AZ | 30 |
| CA | 241 |
| CO | 887 |
| CT | 1121 |
| DE | 2254 |
| FL | 2446 |
| GA | 2873 |
| IA | 3181 |
| ID | 7441 |
| IL | 10855 |
| IN | 14018 |
| KS | 15356 |
| KY | 16230 |
| LA | 17749 |
| MA | 17811 |
| MD | 21158 |
| ME | 23703 |
| MI | 24380 |
| MN | 25131 |
| MO | 26793 |
| MS | 30035 |
| MT | 38301 |
| NC | 38792 |
| ND | 40685 |
| NE | 48168 |
| NH | 55217 |
| NJ | 56419 |
| NM | 62448 |
| NV | 65838 |
| NY | 73592 |
| OH | 74439 |
| OK | 76858 |
| OR | 77500 |
| PA | 80147 |
| RI | 80963 |
| SC | 86215 |
| SD | 89079 |
| TN | 106169 |
| TX | 135880 |
| UT | 141444 |
| VA | 188129 |
| VT | 194404 |
| WA | 252092 |
| WI | 268231 |
| WV | 282000 |
| WY | 365521 |
smallest observation=minimum=16
used excel formula
=QUARTILE(B1:B48,0)
Largest observation tons=maximum=365521
used excel formula
=QUARTILE(B1:B48,1)
lower quartile=Q1=13227.25
median=38546.5
used excel formula
=QUARTILE(B1:B48,2)
upper quartile =80351
used excel formula
=QUARTILE(B1:B48,3)
| smallest observation | 16 |
| slower quartile | 13227.25 |
| median | 38546.5 |
| upper quartile | 80351 |
| Largest observation tons | 365521 |