321 ,324, 324,325, 326, 327.
ср. ар. (321+324+324+325+326+327): 6 = 324,5
мода 324
медиана (324+325):2 =324,5
размах 6
<span>y+(-4,2) если y =-2 4/15
</span>
<span> - 2 4/15+(-4,2) =
= - 2 4/15 - 4,2 =
= - 34/15 - 42/10 =
= - 6 14/30 =
= - 6 7/15
</span>
25/150=1/6
48/56=6/7
60/75=4/5
45/1000=9/200
800/900=8/9
120/140=6/7