Question

In a lottery, there are 10 prizes and 25 are empty. find the probability of getting a prize. Also verify P(E) Pnot a event =1 for this event. ​

Answer 1

Step-by-step explanation:

Let E be the event of getting a prize.

Let E be the event of getting a prize. Therefore, n(E) = 10

n(S) = 10 + 25 = 35

$\therefore \: p(E) = \frac{n(E)}{n(s)} = \frac{10}{35} = \frac{2}{7} \\\\</p><p> \therefore \: p(\bar E) = 1- \frac{n(E)}{n(s)} \\= 1-\frac{2}{7} \\= \frac{7-2}{7}\\</p><p> \\= \frac{5}{7}$