Aspire's Library

A Place for Latest Exam wise Questions, Videos, Previous Year Papers,
Study Stuff for MCA Examinations

Phrases Previous Year Questions (PYQs)

Phrases Probability Distribution PYQ



The mean and variance of a random variable X having binomial distribution are 4 and 2 respectively. The P(X = 1) is





Go to Discussion


Solution

np = 4

npq = 2

q = 1/2, p = 1/2, n = 8

p(X = 1) = 8C1 (1/2)(1/2)7



If  is the mean of distribution of x, then usual notation  is





Go to Discussion


Solution

Mean Deviation from mean is Zero.


Phrases


Online Test Series,
Information About Examination,
Syllabus, Notification
and More.

Click Here to
View More
Aspire Study - Best NIMCET Coaching

🎯 Crack NIMCET with Aspire Study

🔹 India's Most Trusted MCA Coaching
💻 Live + Recorded Classes | 👨‍🏫 Expert Faculty
📝 All India Test Series | 🎯 Personal Mentorship

🏆 Top NIMCET 2025 Results:
27+ AIRs under 100
48+ AIRs under 200

🥇 CUET PG MCA AIR 1: Ayush Garg
🥇 JMI MCA AIR 1: Khushi Kumari
🟦 KIITEE MCA: 100% Tile – Rishabh Singh
🟪 CET MAH MCA: 100% Tile – Ayush Garg

🥈 NIMCET AIR 2: Ayush Garg
🥈 VIT MCA AIR 2: Altmas Abbasi

🚀 Join Aspire Now

Phrases


Online Test Series,
Information About Examination,
Syllabus, Notification
and More.

Click Here to
View More

Ask Your Question or Put Your Review.