21 JEE Main 2023 Statistics previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2023 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.
If the mean of the frequency distribution Class : 0 - 10 10 - 20 20 - 30 30 - 40 40 - 50 Frequency : 2 3 x 5 4 is 28 ,…
The mean and variance of 5 observations are 5 and 8 respectively. If 3 observations are 1 , 3 , 5 , then the sum of cub…
Let the mean and variance of 8 numbers x ,   y ,   10 ,   12 ,   6 , 12 ,   4 ,   8 be 9…
Let the positive numbers a 1 ,   a 2 ,   a 3 ,   a 4 and a 5 be in a G.P. Let their mean and variance be…
Let 9 = x 1 < x 2 < … < x 7 be in an A.P. with common difference d . If the standard deviation of x 1…
The mean and variance of the marks obtained by the students in a test are 10 and 4 respectively. Later, the marks of on…
Let the mean and standard deviation of marks of class A of 100 students be respectively 40 and α > 0 , and the…
Let S be the set of all values of a 1 for which the mean deviation about the mean of 100 consecutive positive integers…
Let μ be the mean and σ be the standard deviation of the distribution X i 0 1 2 3 4 5 f i k + 2 2 k k 2 - 1 k…
Let sets A and B have 5 elements each. Let the mean of the elements in sets A and B be 5 and 8 respectively and the var…
Log in to unlock the full list, track what you've solved, and practice on the TCS iON-style CBT player. It's free.