Vernier Scales

335 340 345 350 355 0 5 10 15 20 25 30

60 0 60

Vernier Scales

335 340 345 350 355 0 5 10 15 20 25 30

60 0 60

0º 0’0 degrees 0 minutes

Vernier Scales

335 340 345 350 355 0 5 10 15 20 25 30

60 0 60

0º 6’0 degrees 6 minutes

Vernier Scales

335 340 345 350 355 0 5 10 15 20 25 30

60 0 60

0º 12’0 degrees 12 minutes

Vernier Scales

335 340 345 350 355 0 5 10 15 20 25 30

60 0 60

0º 30’0 degrees 30 minutes

Vernier Scales

335 340 345 350 355 0 5 10 15 20 25 30

60 0 60

Standard deviation?You can probably quote values to the nearest 3 minutes (0.05 degrees). Standard deviation defined such that 2/3 of values fall within one standard deviation. σ = (1/3)*smallest increment = 1 minute = 0.0167 degrees = 2.9x10-4 radians