Question 1 - Central Tendency — mean (x_bar), effect of data corrections Practice

Question 1

00:00Est. 4 min

Marks:+5.000.00

A factory recorded production over 10 days: 120, 135, 140, 150, 160, 170, 180, 190, 15, 20. Days 5 to 7 were recorded 15 units higher than actual each day. Days 9 and 10 were recorded with the last digit missing, so 15 was 150 and 20 was 200. Calculate the correct average daily production.

Integer answer

Hard Difficulty

15 March 2026

Your answer