Question

in a lottery there r 5 prized tickets and 995 blank tickets . A person buys a lottery ticket . Find the probability of his winning a prize...

Answer 1

Here, no. of prized tickets = no. of favourable outcomes = 5.

Total no. of outcomes = 995 + 5 = 1000.

Thus, probability of winning a prize = 5/1000 = 1/200 or, 0.05 or, 2.5%

Answer 2

Number of Blank tickets = 995 .

Number of Prized tickets = 5 .

Total number of tickets = Number of blank tickets+ Number of prize tickets.

= 995+5

= 1000

Favourable outcomes (Winning a prize) = 5

$\boxed{ \bf{probability(winning \: a \: prize)}}$


$= \boxed{ \bf{ \frac{favourable \: outcomes}{total \: outomes} }}$


$= \bf{ \frac{5}{1000} }$


$= \bf{ \frac{1}{200} }$


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$\boxed{ \bf{note}}$


Probability can never be greater than 1 .

It can also never be smaller than 0 .