Question

Look at this set of 10 numbers:

82 44 27 96 69 80 75 83 56 98
By how much would the mean decrease if the number 42 replaced the number 82 in the set?
NEED THIS EMERGENCY HURRY

Answer 1

Explanation:

mean when 82 is present

=82+44+27+96+69+80+75+83+56+98=710

10 10

= 71

mean when 42 is present

=42+44+27+96+69+80+75+83+56+98=670

10 10

=67

therefore the mean decreases with

= 71 - 67 = 4