ogive250200cumulative frequency15010050012345678910111213141516171819202122scoreMedian=L+﹛（n/2-C）/f﹜*i
Where：L=8.5，C=9，f=6，n=21 ，and i=4
Median=8.5+﹛（22/2-9）/6﹜*4 =9.83 第七小题
Mean﹥median﹥mode
When the mean is significantly larger than the median, which is larger than the mode, the distribution is said to be negatively skewed
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Part Two:
Use the table on the next page to calculate the following:
1. Population:
a. Mean
b. Standard deviation
2. Birth rate per 1,000 of population:
a. Mean
b. Standard Deviation c. Coefficient of Variation
3. Death rate per 1,000 of population:
a. Mean
b. Standard Deviation c. Coefficient of Variation
4. Find out which one is the dispersion the more constant?
Selected World Statistics
Country Name
Population
Birth Rate per 1,000 of Death Rate per 1,000
population of population
Infant mortality rate -
total(deaths/1,000 live births)
Denmark Djibouti Dominica Dominican Republic Ecuador Egypt
El Salvador Equatorial Guinea Eritrea Estonia Ethiopia European Union
Faroe Islands Fiji
Finland France French Polynesia Gabon
Gambia, The Gaza Strip Georgia Germany Ghana Gibraltar Greece
5,556,452 792,198 73,286 10,219,630 15,439,429 85,294,388 6,108,590 704,001 6,233,682 1,266,375 93,877,025 509,365,627 49,709 896,758 5,266,114 65,951,611 277,293 1,640,286 1,883,051 1,763,387 4,555,911 81,147,265 25,199,609 29,111 10,772,967
10.2 24.5 15.61 19.21 19.23 23.79 17.12 34.35 31.39 10.38 38.07 10.19 13.36 20.28 10.36 12.6 15.7 34.82 32.59 33.27 10.72 8.37 31.7 14.19 8.94
10.21 7.96 7.97 4.46 5.03 4.79 5.65 8.59 7.78 13.65 8.87 10.13 8.67 5.96 10.42 8.96 4.85 13.11 7.38 3.15 10.17 11.17 7.53 8.28 10.9
4.14 51.77 11.99 20.44 18.48 23.3 19.05 73.12 39.38 6.82 58.28 4.43 5.82 10.46 3.38 3.34 4.83 48.02 67.63 16 14.21 3.48 39.7 6.42 4.85
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Greenland 57,714 Grenada 109,590 Guam 160,378 Guatemala 14,373,472 Guernsey 65,605 Guinea 11,176,026 Guinea-Bissau 1,660,870 Guyana 739,903 Haiti 9,893,934 Honduras 8,448,465 Hong Kong 7,182,724 Hungary 9,939,470 Iceland 315,281 India 1,220,800,359 Indonesia 251,160,124 Iran 79,853,900 Iraq 31,858,481 Ireland 4,775,982 Isle of Man 86,159 Israel 7,707,042 Italy 61,482,297 Jamaica 2,909,714 Japan 127,253,075 Jersey 95,732 Jordan 6,482,081 Kazakhstan 17,736,896 Kenya 44,037,656 Kiribati 103,248 Korea, North 24,720,407 Korea, South 48,955,203 Kuwait 2,695,316 Kyrgyzstan 5,548,042
14.57
16.57 17.23 25.99 9.95 36.3 34.28 16.31 23.35 24.16 7.58 9.37 13.15 20.24 17.38 18.4 27.51 15.5 11.27 18.71 8.94 18.65 8.23 11.38 26.23 20.03 30.08 22.18 14.49 8.33 20.61 23.67
8.3 8.01 4.95 4.87 8.61 9.94 14.77 7.18 8 5.09 7.39 12.71 7.07 7.39 6.31 5.94 4.65 6.41 9.99 5.52 10.01 6.63 9.27 7.59 2.8 8.43 7.12 7.24 9.15 6.5 2.14 6.83
9.63 10.81 5.61 24.32 3.49 57.11 92.66 34.45 50.92 19.28 2.89 5.16 3.17 44.6 26.06 40.02 38.86 3.78 4.22 4.03 3.33 13.98 2.17 3.90 15.26 22.32 42.18 36.50 25.34 4.01 7.68 29.73
Source: CIA World FactBook, accessed October 2013
第一小题
score
mean
deviation -45,965,459 -50,729,713 -51,448,625 -41,302,281 -36,082,482 33,772,477 -45,413,321 -50,817,910 -45,288,229 -50,255,536
deviation squared 2,112,823,421,080,680 2,573,503,781,062,370 2,646,961,014,390,620 1,705,878,415,802,960 1,301,945,507,280,320 1,140,580,202,715,530 2,062,369,724,249,040 2,582,459,976,768,100 2,051,023,685,956,440 2,525,618,898,647,300
5,556,452 51,521,911 792,198 51,521,911 73,286 51,521,911 10,219,630 51,521,911 15,439,429 51,521,911 85,294,388 51,521,911 6,108,590 51,521,911 704,001 51,521,911 6,233,682 51,521,911 1,266,375 51,521,911
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93,877,025 51,521,911 509,365,627 51,521,911
49,709 51,521,911 896,758 51,521,911 5,266,114 51,521,911 65,951,611 51,521,911 277,293 51,521,911 1,640,286 51,521,911 1,883,051 51,521,911 1,763,387 51,521,911 4,555,911 51,521,911 81,147,265 51,521,911 25,199,609 51,521,911
29,111 51,521,911 10,772,967 51,521,911
57,714 51,521,911 109,590 51,521,911 160,378 51,521,911 14,373,472 51,521,911
65,605 51,521,911 11,176,026 51,521,911 1,660,870 51,521,911 739,903 51,521,911 9,893,934 51,521,911 8,448,465 51,521,911 7,182,724 51,521,911 9,939,470 51,521,911 315,281 51,521,911
42,355,114 457,843,716 -51,472,202 -50,625,153 -46,255,797 14,429,700 -51,244,618 -49,881,625 -49,638,860 -49,758,524 -46,966,000 29,625,354 -26,322,302 -51,492,800 -40,748,944 -51,464,197 -51,412,321 -51,361,533 -37,148,439 -51,456,306 -40,345,885 -49,861,041 -50,782,008 -41,627,977 -43,073,446 -44,339,187 -41,582,441 -51,206,630
1,793,955,681,953,000 209,620,868,280,689,000 2,649,387,578,728,800 2,562,906,116,273,410 2,139,598,756,105,210 208,216,242,090,000 2,626,010,873,965,920 2,488,176,512,640,620 2,464,016,422,099,600 2,475,910,710,658,580 2,205,805,156,000,000 877,661,599,625,316 692,863,582,579,204 2,651,508,451,840,000 1,660,476,437,115,140 2,648,563,572,854,810 2,643,226,750,607,040 2,638,007,072,110,090 1,380,006,520,136,720 2,647,751,427,165,640 1,627,790,436,433,220 2,486,123,409,603,680 2,578,812,336,512,060 1,732,888,469,112,530 1,855,321,750,314,920 1,965,963,503,820,970 1,729,099,399,518,480 2,622,118,955,956,900
1,220,800,359 51,521,911 1,169,278,448 1,367,212,088,957,290,000
251,160,124 51,521,911 79,853,900 51,521,911 31,858,481 51,521,911 4,775,982 51,521,911 86,159 51,521,911 7,707,042 51,521,911 61,482,297 51,521,911 2,909,714 51,521,911 127,253,075 51,521,911
199,638,213 28,331,989 -19,663,430 -46,745,929 -51,435,752 -43,814,869 9,960,386 -48,612,197 75,731,164
39,855,416,089,833,400 802,701,600,696,121 386,650,479,364,900 2,185,181,878,073,040 2,645,636,583,805,500 1,919,742,745,487,160 99,209,289,268,996 2,363,145,697,166,810 5,735,209,200,794,900
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