Standard: M.09F 1. Sarah purchased her first car and her goal is to pay it off as soon as possible. Some months she pays
more than the minimum payment due. The table below shows the year and her account balance at the start of
each year.
Years
0
1
2
3
4
5
Account Balance
$25000 $21200 $16200 $11050 $7355 $4375
a. Use your calculator to find the linear regression equation and the correlation coefficient.
Equation (LinReg)
Correlation coefficient
b. Use your calculator to find the exponential regression equation and the correlation coefficient.
Equation (ExpReg)
Correlation Coefficient (1)
Which model do you think is more accurate? Explain.

step-by-step explanation:

there are 36 inches in a yard

25 : 36 = 0.69 yards (you can round to 0.70)

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560

she was supposed to add the hours(38.5) and multiply the amount of money she earned(7.50) resulting in $288.75 .

correct me if i'm wrong and if it is i'm truly sorry.