Page 167 - Bangladesh_classwiz_BOOK2018_rev_Neat

Abykxjbx-14

1| 50 Rb Qv‡Îi cixÿvq cÖvß bv¤^vi wb‡P †`qv n‡jv-

85, 50, 55, 56, 57, 64, 60, 58, 60, 61, 60, 62, 60, 63, 64, 60, 61, 63, 66, 67, 61, 70, 70, 68, 60,
63, 61. 50, 55, 57, 56, 63, 60, 62, 56, 67, 70, 69, 70, 69, 68, 70, 60, 56, 58, 61, 63, 64

(K) bv¤^v‡ii Mo wbY©q Ki|
(L) MYmsL¨vi wb‡ek‡bi AvqZ‡jL AuvK|
2| wb‡P 50 Rb wkÿv_©xi IR‡bi (‡KwR) MYmsL¨v wb‡ekb mviwY †`Iqv n‡jv| Mo I ga¨K wbY©q Ki|

IRb (‡KwR) 45 50 55 60 65 70
MYmsL¨v 2 6 8 16 12 6

©
3| GKRb K…l‡Ki GK mßv‡ni cÖwZw`‡bi DcvwRZ UvKv wb‡P †`qv n‡jv,
102.50,250,310,150.70,207.40,120.90 Ges 210.0 Zvi Mo Avq Ges cwiwg‡Zv e¨eavb †ei Ki|

4| GKRb wiwmckwb÷ Zvi Kv‡Q AvMZ GK mßv‡ni cÖwZw`‡bi †dvb Kj †iKW© wjwce× K‡i ivLj, hv wb‡P †`qv
n‡jv|

w`b ‡mvg g½j eya e„nt ïµ
msL¨v 140 125 134 132 1260
(i) cÖwZw`‡bi †gvU †dvbK‡ji Mo I cwiwg‡Zv e¨eavb wbYq Ki|
©
(ii) K¨vjKz‡jk‡bi ci wiwmckwb÷ eyS‡Z cvi‡jv, ïµev‡ii WvUv fzj †iKW© n‡q‡Q| mwVK n‡e 126 |
bZzb gvb cÖ‡ek Kwi‡q bZzb Mo I cwiwg‡Zv e¨eavb wbY©q Ki|

5| GKwU ¯‹z‡ji ev”Pviv cÖwZw`b wUwd‡bi R‡b¨ M‡o = 8 UvKv Av‡b| hw` cwiwg‡Zv e¨eavb = 7 nq, Z‡e
20 wU ev”Pv‡`i g‡a¨ KZRb 3 UvKvi †P‡q Kg Av‡b?

6| `kg †kÖYxi 70 wU Qv‡Îi †cvlv KeyZ‡ii msL¨v wb‡ekb wb‡P †`qv n‡jv-

KeyZ‡ii 0 1 2 3 4 5 6 7 8
msL¨v
QvÎ 12 25 12 10 6 2 1 0 2
msL¨v

MYmsL¨v Kjvg e¨envi K‡i, cÖwZwU Qv‡Îi M‡o KqwU K‡i KeyZi _vK‡e|

7| Table Mode e¨envi K‡i, 1 n‡Z 8 Gi g‡a¨ 30 c~Y© ˆ`e msL¨v †ei Ki|

8| 22 wU †gvRvi g‡a¨ KZ Dcv‡q cÖ_g 3 wU ¯’vb c~iY Kiv hv‡e|

9| hw` Av`k© cwiwg‡Zv PjK nq Z‡e, †ei Ki-

(i) ( < 0.74)

(ii) ( > 1.8)
(iii) (−1.5 < < 0.6)

162