Answer:
Randomization removes lurking variables and biases.
Step-by-step explanation:
In case of an experimental design the groups are divided randomly.
Randomization is important so that there are no bias present in the study and to control any lurking variables. The controlling of the lurking variables provides an accurate result.
Lurking variables have a significant effect on the response variable. Presence of lurking variables can indicate a strong relation between variables or conceal any true relation between the variables.
Randomization thus gets rid of lurking variables and biases.
Also if randomization is used then each of the groups are similar in every way other than the fact that each group is provided with different treatment.
Answer:
y = - 
x + 
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (2, - 3) and (x₂, y₂ ) = (- 1, 4)
m = 
= 
= - , thus
y = - x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (- 1, 4), then
4 = + c ⇒ c = 4 - =
y = - x + ← equation of line
The answer of 6and7 irrational number is 6.875
Answer:
7-3√2/31
Step-by-step explanation:
Rationalise it and you'll get your answer.
