I would recommend asking a tutor
2 hundreds be cause there are 2, and you are trying to find hundreths so take the first number
The elephant lost 4 pounds each month. Because he is losing weight, and not gaining weight, you have to make the answer negative
Answer B.
∑fx=1637,∑fx
2
=127663,∑f=21
x
ˉ
=Mean=
∑t
∑fx
=77.95
σ
2
=
∑f
∑fx
2
−(
x
ˉ
)
2
=
21
127663
−(77.95)
2
=2.987
σ=1.728
