Question:
The probability of getting a bad egg in a lot of 400 is 0.035. The number of bad eggs in the lot is
(a) 7
(b) 14
(c) 21
(d) 28
Solution:
(b) Here, total number of eggs = 400
Probability of getting a bad egg = 0.035
$\Rightarrow \quad \frac{\text { Number of bad eggs }}{\text { Total number of eggs }}=0.035$
$\Rightarrow \quad \frac{\text { Number of bad eggs }}{400}=0.035$
$\therefore \quad$ Number of bad eggs $=0.035 \times 400=14$