anonymous
  • anonymous
When the outliers are removed, how does the mean change? dot plot with 1 on 18, 2 on 38, 1 on 40, 3 on 44, 1 on 46, 1 on 48 The mean decreases by 2.75. The mean increases by 2.75. The mean increases by 3.25. There are no outliers.
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
i know the mean increases
anonymous
  • anonymous
by 3.25
anonymous
  • anonymous
is it?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
i think so
anonymous
  • anonymous
@misssunshinexxoxo
misssunshinexxoxo
  • misssunshinexxoxo
I'll check this
anonymous
  • anonymous
thank you
misssunshinexxoxo
  • misssunshinexxoxo
Pretty sure by 3.25; I'll have a friend check @jim_thompson5910
anonymous
  • anonymous
thats what i thought
phi
  • phi
First , figure out 1 on 18, 2 on 38, 1 on 40, 3 on 44, 1 on 46, 1 on 48 18+2*38+40+3*44+46+48 and then divide by 1+2+1+3+1+1 that is the original mean then figure out 2*38+40+3*44+46+48 and divide by 2+1+3+1+1 that is the new mean
anonymous
  • anonymous
its 42 and 1/3
anonymous
  • anonymous
witch simplifys to 3.25
phi
  • phi
What did you get for 18+2*38+40+3*44+46+48 ?
anonymous
  • anonymous
360
phi
  • phi
and what do you get for 1+2+1+3+1+1 ?
anonymous
  • anonymous
9
phi
  • phi
the average is the sum of all the numbers (i.e. 360) divided by the number of numbers (i.e. 9) so the first mean is 360/9 = what ?
anonymous
  • anonymous
40
phi
  • phi
now we "toss out the outlier" which is the number that seems "far away" from the others. in this case, the 18 seems far away so now we add up all the numbers 360 take away 18 we get 360-18 = 342 and instead of 9 numbers, we now have 8 numbers. the new mean is 342/8 = what ?
anonymous
  • anonymous
42.75
phi
  • phi
so old mean was 40, new mean is 42.75 the new mean is bigger by how much ?
anonymous
  • anonymous
2.75
phi
  • phi
and that is choice B

Looking for something else?

Not the answer you are looking for? Search for more explanations.