Question
A. Select the elements you want to explore...like dollars, quantity, etc.
B. Perform the usual analysis such as mean, medium, standard deviation, quartiles, etc.
C. Select some meaningful range within the selected element and determine the probability range of it occurring.
D. Run some simulations by randomly selecting elements and relating calculations done on the selections to the total dataset.
Year Population Violent crime total Murder and nonnegligent manslaughter Forcible rape Robbery Aggravated assault Property crime total Burglary Larceny-theft Motor vehicle theft 1960 179,323,175 288,460 9,110 17,190 107,840 154,320 3,095,700 912,100 1,855,400 328,200 1961 182,992,000 289,390 8,740 17,220 106,670 156,760 3,198,600 949,600 1,913,000 336,000 1962 185,771,000 301,510 8,530 17,550 110,860 164,570 3,450,700 994,300 2,089,600 366,800 1963 188,483,000 316,970 8,640 17,650 116,470 174,210 3,792,500 1,086,400 2,297,800 408,300 1964 191,141,000 364,220 9,360 21,420 130,390 203,050 4,200,400 1,213,200 2,514,400 472,800 1965 193,526,000 387,390 9,960 23,410 138,690 215,330 4,352,000 1,282,500 2,572,600 496,900 1966 195,576,000 430,180 11,040 25,820 157,990 235,330 4,793,300 1,410,100 2,822,000 561,200 1967 197,457,000 499,930 12,240 27,620 202,910 257,160 5,403,500 1,632,100 3,111,600 659,800 1968 199,399,000 595,010 13,800 31,670 262,840 286,700 6,125,200 1,858,900 3,482,700 783,600 1969 201,385,000 661,870 14,760 37,170 298,850 311,090 6,749,000 1,981,900 3,888,600 878,500 1970 203,235,298 738,820 16,000 37,990 349,860 334,970 7,359,200 2,205,000 4,225,800 928,400 1971 206,212,000 816,500 17,780 42,260 387,700 368,760 7,771,700 2,399,300 4,424,200 948,200 1972 208,230,000 834,900 18,670 46,850 376,290 393,090 7,413,900 2,375,500 4,151,200 887,200 1973 209,851,000 875,910 19,640 51,400 384,220 420,650 7,842,200 2,565,500 4,347,900 928,800 1974 211,392,000 974,720 20,710 55,400 442,400 456,210 9,278,700 3,039,200 5,262,500 977,100 1975 213,124,000 1,039,710 20,510 56,090 470,500 492,620 10,252,700 3,265,300 5,977,700 1,009,600 1976 214,659,000 1,004,210 18,780 57,080 427,810 500,530 10,345,500 3,108,700 6,270,800 966,000 1977 216,332,000 1,029,580 19,120 63,500 412,610 534,350 9,955,000 3,071,500 5,905,700 977,700 1978 218,059,000 1,085,550 19,560 67,610 426,930 571,460 10,123,400 3,128,300 5,991,000 1,004,100 1979 220,099,000 1,208,030 21,460 76,390 480,700 629,480 11,041,500 3,327,700 6,601,000 1,112,800 1980 225,349,264 1,344,520 23,040 82,990 565,840 672,650 12,063,700 3,795,200 7,136,900 1,131,700 1981 229,146,000 1,361,820 22,520 82,500 592,910 663,900 12,061,900 3,779,700 7,194,400 1,087,800 1982 231,534,000 1,322,390 21,010 78,770 553,130 669,480 11,652,000 3,447,100 7,142,500 1,062,400 1983 233,981,000 1,258,090 19,310 78,920 506,570 653,290 10,850,500 3,129,900 6,712,800 1,007,900 1984 236,158,000 1,273,280 18,690 84,230 485,010 685,350 10,608,500 2,984,400 6,591,900 1,032,200 1985 238,740,000 1,328,800 18,980 88,670 497,870 723,250 11,102,600 3,073,300 6,926,400 1,102,900 1986 241,077,000 1,489,170 20,610 91,460 542,780 834,320 11,722,700 3,241,400 7,257,200 1,224,100 1987 243,400,000 1,484,000 20,100 91,110 517,700 855,090 12,024,700 3,236,200 7,499,900 1,288,700 1988 245,807,000 1,566,220 20,680 92,490 542,970 910,090 12,356,900 3,218,100 7,705,900 1,432,900 1989 248,239,000 1,646,040 21,500 94,500 578,330 951,710 12,605,400 3,168,200 7,872,400 1,564,800 1990 248,709,873 1,820,130 23,440 102,560 639,270 1,054,860 12,655,500 3,073,900 7,945,700 1,635,900 1991 252,153,092 1,911,767 24,703 106,593 687,732 1,092,739 12,961,116 3,157,150 8,142,228 1,661,738 1992 255,029,699 1,932,274 23,760 109,062 672,478 1,126,974 12,505,917 2,979,884 7,915,199 1,610,834 1993 257,782,608 1,926,017 24,526 106,014 659,870 1,135,607 12,218,777 2,834,808 7,820,909 1,563,060 1994 260,327,021 1,857,670 23,326 102,216 618,949 1,113,179 12,131,873 2,712,774 7,879,812 1,539,287 1995 262,803,276 1,798,792 21,606 97,470 580,509 1,099,207 12,063,935 2,593,784 7,997,710 1,472,441 1996 265,228,572 1,688,540 19,645 96,252 535,594 1,037,049 11,805,323 2,506,400 7,904,685 1,394,238 1997 267,783,607 1,636,096 18,208 96,153 498,534 1,023,201 11,558,475 2,460,526 7,743,760 1,354,189 1998 270,248,003 1,533,887 16,974 93,144 447,186 976,583 10,951,827 2,332,735 7,376,311 1,242,781 1999 272,690,813 1,426,044 15,522 89,411 409,371 911,740 10,208,334 2,100,739 6,955,520 1,152,075 2000 281,421,906 1,425,486 15,586 90,178 408,016 911,706 10,182,584 2,050,992 6,971,590 1,160,002 2001 285,317,559 1,439,480 16,037 90,863 423,557 909,023 10,437,189 2,116,531 7,092,267 1,228,391 2002 287,973,924 1,423,677 16,229 95,235 420,806 891,407 10,455,277 2,151,252 7,057,379 1,246,646 2003 290,788,976 1,383,676 16,528 93,883 414,235 859,030 10,442,862 2,154,834 7,026,802 1,261,226 2004 293,656,842 1,360,088 16,148 95,089 401,470 847,381 10,319,386 2,144,446 6,937,089 1,237,851 2005 296,507,061 1,390,745 16,740 94,347 417,438 862,220 10,174,754 2,155,448 6,783,447 1,235,859 2006 299,398,484 1,435,123 17,309 94,472 449,246 874,096 10,019,601 2,194,993 6,626,363 1,198,245 2007 301,621,157 1,422,970 17,128 92,160 447,324 866,358 9,882,212 2,190,198 6,591,542 1,100,472 2008 304,059,724 1,394,461 16,465 90,750 443,563 843,683 9,774,152 2,228,887 6,586,206 959,059 2009 307,006,550 1,325,896 15,399 89,241 408,742 812,514 9,337,060 2,203,313 6,338,095 795,652 2010 308,745,538 1,246,248 14,748 84,767 367,832 778,901 9,082,887 2,159,878 6,185,867 737,142
Explanation / Answer
We select the robbery variable.
A. Select the elements you want to explore...like dollars, quantity, etc.
We select the robbery variable.
B. Perform the usual analysis such as mean, medium, standard deviation, quartiles, etc.
> summary(tt$Robbery)
Min. 1st Qu. Median Mean 3rd Qu. Max.
106700 380300 427800 422100 526600 687700
> sd(tt$Robbery)
[1] 154990.8