Write the next whole number after 577 base eight system

In base 8, the largest digit is 7. So 1₈ + 7₈ = (8)₈ = 10₈.

Then

577₈ + 1₈ = 570₈ + 7₈ + 1₈

… = 570₈ + 10₈

… = 500₈ + 70₈ + 10₈

… = 500₈ + 100₈

… = 600₈

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify