Thanks in advance!!!

1.

I got a=20 and b=20, so 400, why isn’t it the largest already?

2.

Came up with:

If x is a number bigger than 15 and 20, then x can be the median or 25.

If x is bigger than 25, then 25 is the median

If x is the biggest number, then 25 is the median.

If x is the smallest number, then 20 is the median.

Then I don’t know...

3.

HelpPls
Sep 28, 2018

#2**+1 **

mean {15, 20, 22, 25, 30} = 22.4

median {15, 20, 22, 25, 30}=22

Also, x=37 seems to work

mean {15, 20, 25, 30, 37}=25.4

median {15, 20, 25, 30, 37}=25

Note: there may others!!!!

Guest Sep 28, 2018

edited by
Guest
Sep 28, 2018

edited by Guest Sep 28, 2018

edited by Guest Sep 28, 2018

#7

#8**+1 **

I think you made a mistake, HelpPls, but I am glad that you are attempting this.

I noticed this error in your work:

\(\left(4\triangle\frac{3}{8}\right)=\frac{\sqrt{4*\frac{3}{8}}}{\left|4-\frac{3}{8}\right|}\Rightarrow\frac{\frac{3}{2}}{\frac{32}{8}-\frac{3}{8}}\)

The square root operator suddenly disappeared. Otherwise, though, I think you did well with evaluating this.

TheXSquaredFactor
Sep 28, 2018