The PMF of is almost geometric in nature. Let . Then
Compute the first moment/expected value.
Compute the second moment.
Compute the variance.
The standard deviation is the square root of the variance.
Answer:
The volume will increase
Step-by-step explanation:
Volume of a cube = L x B x H
Given length of sudes = 2m
If the length of the sides double , that’s 2 x 2 = 4
Volume = 4 x 4 x 4
= 64 cube meters
The volume will increase
It is positive(rises from left to right), but it's not completely linear(straight line).
So it has a positive nonlinear association.
Step 1: Cross-multiply.
(x+3)^1/2=(3x+7)^1/4
Step 2: Subtract 6x from both sides.
4x+12−6x=6x+14−6x
−2x+12=14
Step 3: Subtract 12 from both sides.
−2x+12−12=14−12
−2x=2
Step 4: Divide both sides by -2.
−2x/−2=2/−2
Answer:
x=−1