...sup2; : 4² = 9 : 16 2. John's number of marbles : Jack 's number of marbles : Joseph's number of...
The average weight of Peter's friends = (83 + 91 + 92 + 87 + 93)/5 = 89.2 kg The percentage error = (90 - 89.2)/89.2 * 100% = 9.0% (correct to 2 significant figures)
...x 0.4 = 0.06 + 0.004 = 0.064. 2. P(Pass the test given that Jack study) = P(A|S) = 4/5 = 0.8 P(Pass the test ...
a. full house 即是3張數字相同的牌加另外兩張數字相同的牌. 若你寫成13C2x4C3x4C2, 便會忽略了3張與2張的分別. 即是AAA22與222AA是不同的, 但13C2便會忽略這個情況, 而錯誤地視為同一情況. 既然有分別, 便應寫成13P2x4C3x4C2, 亦即...
(a) Full house(夫佬)即三隻一樣加二隻一樣.13C2 = 13個數字中選兩個(如A+K),但AAAKK及KKKAA是不一樣的.做法應該是先選兩個數字,計算A是3隻的情況,然後計算K是3隻的情況.所以number of ways = (13C2...
------------------------------------------------------------------------------------------------------ 圖片參考：http://img716.imageshack.us/img716/7959/statisticsg.png 2010-11-02 12:46:28 補充： http://img716.imageshack.us/img716/7959/statisticsg.png 2010-11-02 12:48:27 補充： 第1題 有少少打錯 the probability he went via...
...熒幕的大細。 佢搵出長35.2cm，比長小4.7cm 電腦熒幕闊的係咩?面積係咩? 呀 jack 用一條鐵絲做左一個14cm等邊三角形，但係呀michelle將佢變做一個正方形。佢面積...
1. Jack purchased x calculators for $2400.He left one for ...x^2-13x-48=0, and hence find out the number of calculators that Jack purchased. New price of each calculator sold out = $[3000/(x-1...
As follows: 圖片參考：http://i707.photobucket.com/albums/ww74/stevieg90/01-121.jpg 圖片參考：http://i707.photobucket.com/albums/ww74/stevieg90/02-103.jpg 2010-07-11 20:48:06 補充： http://i707.photobucket.com/albums/ww74/stevieg90/01-121.jpg http://i707.photobucket.com/albums/ww74...
Please see the following: 圖片參考：http://img205.imageshack.us/img205/7971/86863994.png 2010-05-23 22:37:24 補充： http://img205.imageshack.us/img205/7971/86863994.png
