Question

The mean of 6 items is 8 5 of the items are 8,10,7,11,5 what is the value of the 6th item

Answer 1

• 7

-----------------

Let the 6th item be x.

Use formula for the mean of 6 items and find the missing one:

• (8 + 10 + 7 + 11 + 5 + x)/6 = 8
• 41 + x = 6*8
• 41 + x = 48
• x = 48 - 41
• x = 7

The 6th item is 7.