ExamBro
ExamBro
CUET · MATHS · PYQ PAPER 2023

For the following probability distribution:
X-4-3-2-10
p(x)0.10.20.30.20.2

  1. A 0
  2. B -1.8
  3. C -1.6
  4. D -1
Verified Solution

Answer & Solution

Correct Answer

(B) -1.8

Step-by-step Solution

Detailed explanation

\(E(X) = \sum x \cdot p(x)\) \(E(X) = (-4)(0.1) + (-3)(0.2) + (-2)(0.3) + (-1)(0.2) + (0)(0.2)\) \(E(X) = -0.4 - 0.6 - 0.6 - 0.2 + 0\) \(E(X) = -1.8\)
From CUET
Explore more questions on app