0 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 TRUE? No student in group $Q$ scored less marks than any student in group $P$. No student in group $P$ scored less marks than any student in group $Q$. Most students of group $Q$ scored marks in a narrower range than students in group $P$. The median of the marks of group $P$ is $100$. Quantitative Aptitude gate2016 numerical-ability statistics mean-and-standard-deviation + – Milicevic3306 7.9k points answer comment Share Follow 0 reply Please log in or register to add a comment.
