Page 159 - Bangladesh_classwiz_BOOK2018_rev_Neat

D`vniYgvjv

1| ‡Kv‡bv ¯‹z‡ji 10g †kÖwYi 60 Rb wkÿv_©xi IR‡bi (wK‡jvMÖvg) MYmsL¨v wb‡ekb n‡jv wb¤œiƒc-

IRb (‡KwR) 46-50 51-55 56-60 61-65 66-70
MYmsL¨v (wkÿv_©xi 5 10 20 15 10
msL¨v)
i.) MYmsL¨v wb‡ek‡bi AvqZ‡jL AuvK|

ii.) AvqZ‡j‡Li MYmsL¨v eûfzRAuvK|

mgvavb- †h‡nZz, GB mgm¨vq e¨ewa e¨envi Kiv n‡q‡Q Ges K¨vjKz‡jUi-G Kjv‡g GKwU K‡i WvUv cÖ‡ek
Kiv‡bv hvq, †m‡nZz ga¨gvb Spreadsheet Gi gva¨‡g wbY©q K‡i, wb‡¤œvv³ †Uwej ˆZwi Kiv n‡jv-

e¨ewai m‡e©v”P gvb + e¨ewai me©wb¤œ gvb
ga¨gvb =
2

‡kÖwY ga¨gvb MYmsL¨v
48 5
53 10
58 20
63 15

68 10

GLb K¨vjKz‡jU‡ii w6evUb †P‡c statistics Mode- G Avm‡Z n‡e, Gici 1-Pj‡Ki Rb¨ 1evUb

Pvc‡Z n‡e| D³ mgm¨vq MYmsL¨v _vKvq, MYmsL¨v (Frequency Mode) Pvjy Ki‡Z n‡e| GRb¨
qwR31Pvc‡Z n‡e Ges wb‡¤œvv³ wPÎ †`Lv hv‡e|

GLb Kjv‡g ga¨we›`y Ges Freq Kjv‡g MYmsL¨v cÖ‡ek Kiv‡Z n‡e| Dc‡ii 2q Ges 3q w¯Œb `ywU †`Lv hv‡e|

(Key log-48=53=58=63=68=$R5=
10=20=15=10=)

i) GLb AvqZ‡jL †ei Kivi Rb¨ qT evUb Pvc‡Z n‡e, d‡j GKwU QR Code w¯Œ‡b †`Lv hv‡e| D³
QR Code wU Smart Phone Gi gva¨‡g ¯K¨vb Ki‡j Casio website-Gi D³ cwimsL¨vbwU AvqZ†jL cvIqv
hv‡e| hv wb‡P †`Lv‡bv n‡jv, [jÿYxq †h GRb¨ †gvevB‡j B›Uvi‡bU Pvjy _vK‡Z n‡e] |

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