Use the computational formula to solve this problem and two decimal places (if appropriate). A population of N = 5 scores has ∑x= 40 and ∑x2= 445. The value for population variance is and the value for standard deviation is

To solve this problem, we'll use the computational formulas for **population variance** (\( \sigma^2 \)) and **population standard deviation** (\( \sigma \)).

Given:
- \( N = 5 \) (population size),
- \( \sum x = 40 \) (sum of all scores),
- \( \sum x^2 = 445 \) (sum of the

A population of N = 5 scores has ∑x= 40 and ∑x²= 445. The value for population variance is and the value for standard deviation is

Solve a statistics problem involving a population of 5 scores with ∑x = 40 and ∑x² = 445. Learn how to calculate population variance and standard deviation using computational formulas. This example is ideal for students in Grades 10-12.

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