Advanced Placement (AP)
Th gii ca chng ta c mun vn iu th v khm ph. Cho d bn ang tui no, bn cng nn ph v cc gii hn ca nhn thc v luyn cho mnh k nng quan st bng cch ra khi nh, ra ngoi thin nhin v ch ti mi iu xung quanh. Hy t cho bn thn nhng cu hi nh: Ti sao? Ti sao khng? v th t tm cc cu tr li hay s tr gip ca nhng ngi quen bit. ng bao gi t cao t i ni rng: Ti bit ht ri, anh/ch s khng ch cho ti c iu g mi u!. V ch khi chng ta nhn thc c rng vn cn nhiu iu c th hc, chng ta mi c th b sung c nhiu kin thc mi[...] D bn chn cho mnh b mn no i na, bn cng nn theo hc n cng v tm hiu khng ngng ngh cho n khi t c kin thc su sc v lnh vc mi thi. ng ch chm n mt ln ri b x. Hy quyt tm rn luyn v cng c tr t m n tr thnh mt phn trong c tnh ca bn. Bit u, trong mt ln t m hay thc mc nh vy, bn s tm ra c nim am m cho bn thn. C kht vng khm ph v tm ti l mt trong nhng ng lc gip bn tip cn vi th gii v vn ra bin ln. (Trch "Tm kim nim am m", theo "H chiu xanh i quanh th gii", Nh xut bn Th gii, 2017, tr17-18)on trch trn s dng phng thc biu t no? *on trch trn s dng phng thc biu t ngh lun.V sao trong cc cu vn: "Hy t cho bn thn nhng cu hi nh: Ti sao? Ti sao khng? v th t tm cc cu tr li hay s tr gip ca nhng ngi quen bit. ng bao gi t cao t i ni rng: Ti bit ht ri, anh/ch s khng ch cho ti c iu g mi u!. tc gi lc bt thnh phn ch ng? *
An airline records data on several variables for each of its flights: model of plane, amount of fuel used, time in flight, number of passengers, and whether the flight arrived on time. The number and type of variables recorded are a. 1 categorical, 4 quantitative (1 discrete, 3 continuous) b. 1 categorical, 4 quantitative (2 discrete, 2 continuous) c. 2 categorical, 3 quantitative (1 discrete, 2 continuous) d. 2 categorical, 3 quantitative (2 discrete, 1 continuous) e. 3 categorical, 2 quantitative (1 discrete, 1 continuous)