So in order to find
(x+2)2
without writing (x+2)(x+2)=x2+2x+2x+4=x2+4x+4 instead say y=2 and use the identity to get
x2+2×2x+2^2=x2+4x+4
maybe: Mean
=
2.22
Median =
2
Mode =
1
and
3
Explanation:
Mean:
¯
x
=
1
+
2
+
1
+
2
+
1
+
3
+
3
+
4
+
3
9
=
20
9
=
2.22
Median: First we put the numbers in order from lowest to highest:
1
,
1
,
1
,
2
,
2
,
3
,
3
,
3
,
4
The median is the number that has the central position.
Median
=
2
Mode: it is the number that appears the most times. In this case, both
1
and
3
appear the same number of times, so they are both modes.
hope this helps!
Idk what are the possible answers
Answer:
Um srry I am a hack I like this app Haha I hadked this girls brainy hehehe