Question:
If A and B be two events associated with a random experiment such that P(A) = 0.3, P(B) = 0.2 and P $(A \cap B)=0.1$, find
(i) $P(\bar{A} \cap B)$
(ii) $P(A \cap \bar{B})$
Solution:
(i) Given : $P(A)=0.3, P(B)=0.2, P(A \cap B)=0.1$
To find $P(\bar{A} \cap B)$
Formula used: $P(\bar{A} \cap B)=\mathrm{P}(\mathrm{B})-\mathrm{P}(\mathrm{A} \cap \mathrm{B})$
Substituting in the above formula we get,
$P(\bar{A} \cap B)=0.2-0.1$
$P(\bar{A} \cap B)=0.1$
$P(\bar{A} \cap B)=0.1$
(ii) Given : $P(A)=0.3, P(B)=0.2, P(A \cap B)=0.1$
To find : $P(A \cap \bar{B})$
Formula used : $P(A \cap \bar{B})=\mathrm{P}(\mathrm{A})-\mathrm{P}(\mathrm{A} \cap \mathrm{B})$
Substituting in the above formula we get,
$P(A \cap \bar{B})=0.3-0.1$
$P(A \cap \bar{B})=0.2$
$P(A \cap \bar{B})=0.2$
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- JEE Main
- Exam Pattern
- Previous Year Papers
- PYQ Chapterwise
- Physics
- Kinematics 1D
- Kinemetics 2D
- Friction
- Work, Power, Energy
- Centre of Mass and Collision
- Rotational Dynamics
- Gravitation
- Calorimetry
- Elasticity
- Thermal Expansion
- Heat Transfer
- Kinetic Theory of Gases
- Thermodynamics
- Simple Harmonic Motion
- Wave on String
- Sound waves
- Fluid Mechanics
- Electrostatics
- Current Electricity
- Capacitor
- Magnetism and Matter
- Electromagnetic Induction
- Atomic Structure
- Dual Nature of Matter
- Nuclear Physics
- Radioactivity
- Semiconductors
- Communication System
- Error in Measurement & instruments
- Alternating Current
- Electromagnetic Waves
- Wave Optics
- X-Rays
- All Subjects
- Physics
- Motion in a Plane
- Law of Motion
- Work, Energy and Power
- Systems of Particles and Rotational Motion
- Gravitation
- Mechanical Properties of Solids
- Mechanical Properties of Fluids
- Thermal Properties of matter
- Thermodynamics
- Kinetic Theory
- Oscillations
- Waves
- Electric Charge and Fields
- Electrostatic Potential and Capacitance
- Current Electricity
- Thermoelectric Effects of Electric Current
- Heating Effects of Electric Current
- Moving Charges and Magnetism
- Magnetism and Matter
- Electromagnetic Induction
- Alternating Current
- Electromagnetic Wave
- Ray Optics and Optical Instruments
- Wave Optics
- Dual Nature of Radiation and Matter
- Atoms
- Nuclei
- Semiconductor Electronics: Materials, Devices and Simple Circuits.
- Chemical Effects of Electric Current,
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