1. Find the mode of the following data: 2, 2, 2, 5, 5, 6, 9, 10, 13
2. Five idential rectangles are arranged as shown in the figure. The area of each rectangle is 180 sq.cm. Estimate the value of X, correct to 3 sig.fig.
(show your method of estimation.)
第1題我主要係唔明mode點解, 如果可以既話, 請詳細解釋一下~!
至於第2題既圖請去呢個網:http://farm6.static.flickr.com/5014/5418672702_c64fa52698_m.jpg
同埋第2題我想有埋步驟咁答 XD
先thx答題既人, 麻煩你地la =)