Q. 85.0( 1 Vote )

# The mean and stan

To Find: Find the correct mean and standard deviation.

Explanation: Here, n=100, X =   Now,

Corrected 3990

So, The mean of correct score =  Mean = 39.9

Now, Standard variance = 5.1

Since, Variance = Variance = 26.01

X = 26.01 = 26.01 =  Corrected -50+40

Corrected Corrected Variance =  1625.91-1592.01

Corrected variance =34 (Approx)

Now, Corrected Standard Deviation =  Correct Deviation is 5.83

Hence, The correct Mean is 39.9 and Correct SD is 5.83

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation view all courses RELATED QUESTIONS :

The sum and the sRS Aggarwal - Mathematics

If x1,RD Sharma - Mathematics

The mean and variRS Aggarwal - Mathematics

If the sum of theRD Sharma - Mathematics

The mean and stanRS Aggarwal - Mathematics

Following are theRD Sharma - Mathematics

The mean and variRS Aggarwal - Mathematics

The following resRS Aggarwal - Mathematics

Coefficient of vaRS Aggarwal - Mathematics

The following resRS Aggarwal - Mathematics