A card is drawn from a deck of 52. Given that the card is RED, what is the probability that it's a KING?
A$1/52$
B$2/52$
C$1/13$
D$1/26$
Answer & Solution
Correct answer: C. $1/13$
P(king | red) = P(red king) / P(red) = (2/52) / (26/52) = 2/26 = 1/13. Conditional probability reduces the sample space.
Keep practising Relations, Functions & Inverse Trigonometry
Browse all Relations, Functions & Inverse Trigonometry questions for AP Intermediate 2nd Year, or explore more Mathematics topics.
Related questions
Complete the rule about restricting a domain$\tan^{-1}\left(\tfrac{1}{2}\right) + \tan^{-1}\left(\tfrac{1}{3}\right)$ equalsAll real $x$ satisfying $ in^{-1}(x) + in^{-1}(1-x) = \cos^{-1}(x)$ are$\displaystyle um_{n=1}^{\infty} \tan^{-1}\left(\frac{1}{n^2 + n + 1}\right)$ equalsTrue or false: the historical noteTrue or false: principal valuesDomain checkMatch each inverse function to its principal value branch