Q. 14.0( 36 Votes )

Find the mean and

Answer :

We know that Mean,

Where n = number of observations and = Sum of total observations

∴

From the given data, we can form the table:

We know that Variance, σ² =

∴ σ² = (1/8) × 74 = 9.25

Ans. Mean = 9 and Variance = 9.25

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