Answer:
Option C) Quadratic regression model
Step-by-step explanation:
Quadratic regression model
- It is regression model in which states a non-linear relationship between the independent and dependent variables.
- It includes the dependent variable and the square of the independent variable.
where x is the independent variable and 
is the dependent variable.
- It is also referred to as second-order polynomial model.
- It is used when the data shape resembles to a parabola.
Thus, the correct answer is
Option C) Quadratic regression model
Answer: well 88% of $1950 would be 1716 so 1950 minus 1716 would be 234 so he owes $234
SA of cube =6s²=6(9²)=486
lateral area of cylinder (area of height around tube; also don't need to include area of circle as it is part of the cubes SA)= 2(3.14)rh=6.28(3)(4)= 75.36
add together 561.36<span />
It would weigh 12 lbs because 50% of 8 is 4 and 4 + 8 = 12 lbs.
Answer: 709
Step-by-step explanation:
The formulas we use to find the required sample size :-
1. 
, where 
= population standard deviation,
E = Margin of error .
z* = Critical value
2. 
, where p= prior estimate of population proportion.
3. If prior estimate of population proportion is unavailable , then we take p= 0.5 and the formula becomes
Given : Margin of error : E= 3% =0.03
Critical value for 95% confidence interval = z*= 1.96
A study conducted several years ago revealed that the percent of junior executives leaving within three years was 21%.
i.e. p=0.21
Then by formula 2., the required sample size will be :
[Round to the next integer.]
Hence, the required sample size of junior executives should be studied = 709
