Answer:
option (a) It will be closer to 30 than to 20
Step-by-step explanation:
Data provided in the question:
For sample 1:
n₁ = 10
variance, s₁² = 20
For sample 2:
n₂ = 15
variance, s₂² = 30
Now,
The pooled variance is calculated using the formula,
on substituting the given respective values, we get
or
= 26.0869
Hence,
the pooled variance will be closer to 30 than to 20
Therefore,
The correct answer is option (a) It will be closer to 30 than to 20
Link provided in other answer is a SCAM. Don’t click on it !!!!
It is also a parallelogram, since it has two pairs of parallel sides. A square has two pairs of parallel sides, four right angles, and all four sides are equal. It is also a rectangle and a parallelogram. A rhombus is defined as a parallelogram with four equal sides.
Answer:
D. 80 cubic inches
Step-by-step explanation:
Arranged in five rows of four => we can say the length, depth and width as 5,4,4
So, the volume is equal to 5 x 4 x 4 = 80 cubic inches
Sorry that this answer might not make sense to you, I just can't think of any better explanation.
Side of the parallelogram :-
3/5 - 1/5 = 2/5
Height :-
2/5 is the side of rectangle n also forms the height of parallelogram.
Area = bh
= 2/5 × 2/5
= 0.16 foot square
