Question

What is the variance of the data set (4,6,7,10)​

Answer 1

• 4.6875

Explanation:

Given data set

• (4,6,7,10)​

To find

• Variance

Solution

• The Variance is defined as the average of the squared differences from the mean.

The mean is:

• x = (4 + 6 + 7 + 10)/4 = 6.75

The variance is:

• σ² = [(4 - 6,75)² + (6 - 6.75)² + (7 - 6.75)² + (10 - 6.75)²]/4 = 4.6875