5 JEE Main 2012 Statistics previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2012 previous-year questions from the Statistics chapter of Mathematics. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Statistics chapter hub.
The frequency distribution of daily working expenditure of families in a locality is as follows: If the mode of the dis…
If the mean of 4,7,2,8,6 and a is 7 , then the mean deviation from the median of these observations is
Statement 1: The variance of first n odd natural numbers is (n²-1)/(3) Statement 2: The sum of first n odd natural numb…
Let x₁, x₂, … …, xn be n observations, and let x be their arithematic mean and σ² be their variance. Statement 1: Varia…
The median of 100 observations grouped in classes of equal width is 25 . If the median class interval is 20-30 and the…