Page 146 - Bangladesh_classwiz_BOOK2018_rev_Neat

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PZ`k Aa¨vq

cwimsL¨vb I m¤¢vebv

(Statistics and Probability)

ev¯Íe Rxe‡bi cÖvq mKj ‡¶‡Î cwimsL¨vb I m¤¢vebvi e¨vcK e¨envi cwijw¶Z nq| cwimsL¨vb n‡”Q ‡mB weÁvb,
‡hLv‡b Z_¨ I DcvË msM«n, mvRv‡bv Ges we‡køl‡Yi gva¨‡g fwel¨‡Zi m¤ú‡K© aviYv cvIqv hvq|

Ab¨w`‡K, ‡Kv‡bv NUbv NUvi ‡¶‡Î AwbðqZv _vK‡jB ‡Kej m¤¢vebvi K_v ejv nq|

GB Aa¨v‡q K¨vjKz‡jUi e¨envi K‡i, †h me wel‡q Av‡jvKcvZ Kiv n‡e-

 wewfbœ Pj‡Ki mbv³KiY
 wewfbœ iKg m¤¢vebv wbY©q
 mgv‡ek e¨envi K‡i m¤¢vebv wbY©q
 cwiwg‡Zv web¨vm

GB Aa¨v‡q Statistics Mode dvskb e¨envi K‡i cwimsL¨vb m¤cwK©Z mgm¨vi mgvavb m¤ú‡K© Av‡jvPbv Kiv
n‡e| ‡mRb¨ w6 evUb ‡P‡c Statistics Mode G cÖ‡ek Ki‡Z n‡e|

14.1 wewfbœ Pj‡Ki mbv³KiY
14.1.1 GK-Pj‡Ki Av‡jvPbv

cÖ_‡g GK Pj‡Ki Av‡jvPbv I mgm¨vejx ‡`Lv‡bv n‡e Ges cieZ©x‡Z `yB-Pj‡Ki wKQ mgm¨v ‡`Lv‡bv
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n‡e|w6evUb Pvcvi ci wb‡gœv³ wPÎ ‡`Lv hv‡e|

Gici GK-Pj‡Ki Rb¨ 1(1 – VAR) evUb Pvc‡Z n‡e| wKQ mgm¨vq MYmsL¨v (Frequency) _v‡K Avevi
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wKQy mgm¨vq _v‡K bv| ZvB ClassWiz Gi MYmsL¨v (Frequency Mode) wVK K‡i wb‡Z n‡e| GRb¨
qwGes R evUb †P‡c Statistics- ‡h‡Z n‡e Ges wb‡gœv³ wPÎ ‡`Lv hv‡e|

MYmsL¨v Qvov KvR Kivi R‡b¨ 2evUb Pvc‡Z n‡e| ZLb w¯Œ‡b DcvË cÖ‡ek Kiv‡bvi Rb¨ GKwU Lvwj gv‡bi
ZvwjKv ‡`Lv hv‡e, hv Dc‡ii 2q wP‡Î ‡`Lv‡bv n‡jv| hw` w¯Œ‡b bv ‡`Lv hvq Z‡e C ‡P‡c T3 evUb
Pvc‡Z n‡e| ClassWiz K¨vjKy‡jUiwU, 1 Pj‡Ki MYmsL¨v (Frequency) Qvov 160wU gvb Ges MYmsL¨vmn

80wU gvb wb‡Z m¶g|

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