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 $P(X \geq 3)$.
Class 12 Subjects
Browse all chapters by subject
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
Calculus
Definite Integration Differential Equations Continuity and Differentiability Indefinite Integration Application of Integration Application of Derivatives
Relations and Functions
Algebra