COMEDK · Maths · 36. Probability
P and Q are considering to apply for a job. The probability that P applies for the job is \(\dfrac{1}{4}\). The probability that \(\mathrm{P}\) applies for the job given that \(\mathrm{Q}\) applies for the job is \(\dfrac{1}{2}\), and the probability that Q applies for the job given that P applies for the job is \(\dfrac{1}{3}\). Then the probability that \(\mathrm{P}\) does not apply for the job given that \(\mathrm{Q}\) does not apply for the job is
- A \(\dfrac{4}{5}\)
- B \(\dfrac{7}{8}\)
- C \(\dfrac{11}{12}\)
- D \(\dfrac{5}{6}\)
Answer & Solution
Correct Answer
(A) \(\dfrac{4}{5}\)
Step-by-step Solution
Detailed explanation
Let \(P\) be the event that P applies for the job and \(Q\) be the event that Q applies for the job. Given probabilities are \(P(P) = \dfrac{1}{4}\), \(P(P|Q) = \dfrac{1}{2}\), and \(P(Q|P) = \dfrac{1}{3}\). Using the definition of conditional probability,…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Maths
- If \(\quad X=\left[\begin{array}{ll}1 & 0 \\ 0 & 1\end{array}\right]\) and \(Y=\left[\begin{array}{cc}0 & 1 \\ -1 & 0\end{array}\right]\) and \(B=\left[\begin{array}{cc}\cos \theta & \sin \theta \\ -\sin \theta & \cos \theta\end{array}\right]\) then \(B\) equalsCOMEDK 2025 Easy
- Coefficient of variation of two distributions are 60 and 70 , and their standard deviation are 21 and 16 respectively. What are their arithmetic means?COMEDK 2014 Medium
- A triangular park is enclosed on two sides by a fence and on the third side by a straight river bank. The two sides having fence are of same length \(x\). The maximum area enclosed by the park isCOMEDK 2023 Medium
- The equation of the director circle of the hyperbola \(\frac{x^{2}}{16}-\frac{y^{2}}{4}=1\) is given byCOMEDK 2013 Easy
- If \(x, y\) and \(z\) are non-zero real numbers and \(\mathrm{a}=x \hat{i}+2 \hat{j}, \mathrm{b}=\hat{y} \hat{j}+3 \hat{k}\) and \(\mathrm{c}=x \hat{i}+y \hat{j}+z \hat{k}\) are such that \(\mathrm{a} \times \mathrm{b}=z \hat{i}-3 \hat{j}+\hat{k}\), then \([\mathrm{a b} \mathrm{c}]\) is equal toCOMEDK 2022 Hard
- \(\int \dfrac{dx}{x\sqrt{x^2 + 4}} =\)COMEDK 2026 Medium
More PYQs from COMEDK
- An electric current \(I\) enters and leaves a uniform circular wire of radius \(r\) through diametrically opposite points. A charged particle \(q\) moves along the axis of circular wire passes through its centre with speed \(v\). The magnetic force on the particle when it passes through the centre has a magnitudeCOMEDK 2022 Hard
- The molar heat capacity in a process of a diatomic gas if it does a work of \(\frac{Q}{4}\), when a heat of \(Q\) is supplied to it isCOMEDK 2024 Hard
- For a natural number \(n\), which one is the correct statement?COMEDK 2014 Medium
- If \(x = 4\) is a root of \(\begin{vmatrix} x & 3 \\ 1 & x - 2 \end{vmatrix} = 5\), then the other root is:COMEDK 2026 Easy
- The domain of the function \(\sin ^{-1}\left(x^2-4\right)\) isCOMEDK 2025 Medium
- A proton and an alpha particle are subjected to same potential difference \(V\). Their de-Broglie wavelengths \(\lambda_{p}, \lambda_{\alpha}\) will be in the ratioCOMEDK 2016 Easy