JEE Main & Advanced
Mathematics
Statistics
Question Bank
Numerical Value Type Questions - Statistics
question_answer
5 students of a class have an average height \[150\text{ }cm\] and variance \[18\text{ }c{{m}^{2}}\]. A new student, whose height is \[156\text{ }cm,\] joined them. Then variance (in \[c{{m}^{2}}\]) of the height of these six students is