Question

a coin is tossed 50 times and tail is obtained 19 times. on tossing a coin at random, find the probability of getting( i) a tail (ii)a head.​

Answer 1

$\huge\sf{\mathfrak{\underline{\underline{Solution-}}}}$

$\\\sf{Total\:number \:of\: trails = 50}$

$\sf{Number \:of \:heads = 50 - 19 = 31}$

$\\\sf{(i)\bf {P (getting\: a \:tail)}}$

$\rm=\dfrac{Number\:of\:tails}{Total\:number\:of\:trails}=\bf\dfrac{19}{50}\\\\</p><p></p><p>\\\sf{(ii)\bf {P (getting\: a \:head)}}$

$\rm=\dfrac{Number \:of \:heads}{Total\:number\:of\:Trails}=\bf\dfrac{31}{50}$

_________________________

Answer 2

Answer :

(i) Probability = Favourable outcome/Total Outcomes

Probability of getting tails = 19/50

$\rule{150}{2}$

(ii)  Probability = Favourable outcome/Total Outcomes

Probability of getting a head = 50 - 19/50

Probability of getting a head = 31/50