in Analytical Aptitude retagged by
0 votes
0 votes

Students taking an exam are divided into two groups, $P$ and $Q$ such that each group has the same number of students. The performance of each of the students in a test was evaluated out of $200$ marks. It was observed that the mean of group $P$ was $105$, while that of group $Q$ was $85$. The standard deviation of group $P$ was $25$, while that of group $Q$ was $5$. Assuming that the marks were distributed on a normal distribution, which of the following statements will have the highest probability of being $\text{TRUE}$?

  1. No student in group $Q$ scored less marks than any student in group $P.$
  2. No student in group $P$ scored less marks than any student in group $Q.$
  3. Most students of group $Q$ scored marks in a narrower range than students in group $P.$
  4. The median of the marks of group $P$ is $100$.
in Analytical Aptitude retagged by
7.9k points

Please log in or register to answer this question.

Answer:
Quick search syntax
tags tag:apple
author user:martin
title title:apple
content content:apple
exclude -tag:apple
force match +apple
views views:100
score score:10
answers answers:2
is accepted isaccepted:true
is closed isclosed:true
Welcome to GATE Chemical Q&A, where you can ask questions and receive answers from other members of the community.