List of top Mathematics Questions on Mean

There are 40 female and 20 male students in a class. If the average heights of female and male students are 5.15 feet and 5.66 feet, respectively, then the average height (in feet) of all the students in the class equals:
Find the mean of the following data using the direct method:
If one AM (Arithmetic mean) \( a \) and two GM's (Geometric means) \( p \) and \( q \) be inserted between any two positive numbers, the value of \( p^3 + q^3 \) is:
If one AM (Arithmetic mean) \( a \) and two GM's (Geometric means) \( p \) and \( q \) be inserted between any two positive numbers, the value of \( p^3 + q^3 \) is:
If the mean of 5 observations x, x+2, x+4, x+6 and x+8 is 11, then value of x
Verify Lagrange's mean value theorem for the function \( f(x) = \sqrt{x + 4} \) on the interval \([0, 5]\).
Find the mean of numbers randomly selected from 1 to 15.
For a group of 100 candidates, the mean and standard deviation of scores were found to be 40 and 15 respectively. Later on, it was found that the scores 25 and 35 were misread as 52 and 53 respectively. Then the corrected mean and standard deviation corresponding to the corrected figures are
The mean of 25 observations was found to be 38. It was later discovered that 23 and 38 were misread as 25 and 36, then the mean is
If the mean of 1,3,4,5,7,4 is \(m\) and mean of 3,2,2,4,3,3,\(p\) is \((m-1)\) and median is \(q\) then \( p+q = \)
The algebraic sum of the deviations of a set of 'n' values from their mean is :