1
CBSE 12th Mathematics Delhi Set 1 - 2024
Subjective
+3
-0
The random variable $X$ has the following probability distribution where $a$ and $b$ are some constants:
| X | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
| P(X) | 0.2 | a | a | 0.2 | b |
If the mean $E(X)=3$, then find values of $a$ and $b$ and hence determine $P(X \geq 3)$.
Questions Asked from Probability (Marks 3)
Number in Brackets after Paper Indicates No. of Questions
Class 12 Subjects
Physics
Electromagnetism
Electrostatics Current Electricity Capacitor Magnetic Effect of Current Magnetic Properties of Matter Electromagnetic Induction Alternating Current Electromagnetic Waves
Optics
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
Mathematics
Relations and Functions
Calculus
Continuity and Differentiability Application of Derivatives Indefinite Integration Definite Integration Application of Integration Differential Equations
Algebra