Answer:
Answer: Option d. 36,108 is the correct answer.
Step-by-step explanation:
In this question we have given a sequence of four terms and we know the first and last term.
Now we have to calculate the ratio of the terms so that we can complete the sequence.
We know the formula of the sequence A(n) =
Now we know A(4)=324
A(1) = 12
n = 4
So we the values in the formula
324 =
324 =
r = 3
So the sequence will be 12,36,108,324
Answer:
The equation for regression line and predicting a husband's height for married couples in their early 20s
Equation: Y'=33.67+0.54*X'
Step-by-step explanation:
r=0.5
x'=64.5
Sx=2.5
y'=68.5
Sy=2.7
General regression line equation is:
Y'=a+b*X'
so the slope of the regression line is the linear correlation coefficient multiplied by the standard deviation for y' divided by the standard deviation for x'
The intercept with axis y is the mean of the decreased by the product of the slope and the mean of x
The equation regression line then is:
Y'=33.67+0.54*X'