19. If mean of the given frequency ...
Question
Fullscreen

19. If mean of the given frequency distribution is 25, then find out unknown frequencies, when sum of all frequencies (Ef) is 160. यदि दिये गये आवृत्ति वितरण का माध्य 25 है तो अज्ञात आवृत्तियाँ ज्ञात कीजिये जबकि सभी आवृत्तियों का योग 160 है। Class | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 (वर्ग अन्तराल) f (आवृत्ति) Gestion (T )

JEE/Engineering Exams
Maths
Solution
294
Rating
2.0 (1 ratings)
Fullscreen
Jate - ( A 180, quad 68+2+F_{2}=160 ) ef Given [ A+F_{2}=92-0 ] ( bar{x}=frac{1740+15 t_{1}+35 t_{2}}{68 x+71+frac{1}{2}} ) [ begin{array}{l} 700+257+252=1740+157+3572 10+1+101=90 Rightarrow 1+1=9-2 end{array} ] ( 0+2 ) ( 2 f_{1}=96 ) ( quad quad quad 1=48 quad ) And ( quad f=f_{1}-9 ) ( =48-9 ) ( =44 )
Quick and Stepwise Solutions Just click and Send Download App OVER 20 LAKH QUESTIONS ANSWERED Download App for Free