In a lottery, there are 10 prizes and 25 blanks. Find the probability of getting a prize.

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Solution

No of prizes n(E)= 10

Total outcomes n(S)=10+25 =35

$P (E) = \frac{n (E)}{n (S)} = \frac{10}{35} = \frac{2}{7}$

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In a lottery, there are 10 prizes and 25 blanks. Find the probability of getting a prize.

No of prizes n(E)= 10 Total outcomes n(S)=10+25 =35 P(E)=n(E)n(S)=1035=27

No of prizes n(E)= 10

Total outcomes n(S)=10+25 =35

$P (E) = \frac{n (E)}{n (S)} = \frac{10}{35} = \frac{2}{7}$