Statistics And Probability Question 238
Question: A lot consists of 12 good pencils, 6 with minor defects and 2 with major defects. A pencil is choosen at random. The probability that this pencil is not defective is
[EAMCET 1991]
Options:
A) $ \frac{3}{5} $
B) $ \frac{3}{10} $
C) $ \frac{4}{5} $
D) $ \frac{1}{2} $
Show Answer
Answer:
Correct Answer: A
Solution:
-
Required probability $ =\frac{{}^{12}C_1}{{}^{20}C_1}=\frac{3}{5}. $
BETA
