Which of the following formulae is used to find out P(77) in frequency

1.	Which of the following formulae is used to find out P(77) in frequency distribution ?
Answer» <P>`l_(1)-(77(N/(10))-c.f.)/(f)XXI` `l_(1)+(77(N/(10))-c.f.)/(f)xxi` `l_(1)-(77(N/(100))-c.f.)/(f)xxi` `l_(1)+(77(N/(100))-c.f.)/(f)xxi` SOLUTION :P(77)=`l_(1)+(77(N/(100))-c.f.)/(f)xxi`

Discussion