Tim is investigating the relationship between the number of years since a tree was planted and the height of the tree in feet. his data are shown in the table. years since tree was planted vs. height of tree years since tree was planted, x height of tree in feet, y 2 17 3 25 5 42 6 47 7 54 9 69 using a regression calculator, what is a good prediction for the height of the tree when it is 100 years old

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;

if you was gonna solve for a, a is a   < -12