Why do we estimate a line of best fit for scatter plot

If the coefficient of correlation is a positive value, then the slope of the regression line 1. must also be positive 2. can be either negative or positive 3. can be zero 4. None of these answers is correct.

Mrs Ross class has 24 students. 2/3 of her students have brown hair. The rest have blonde hair. How many students have brown hair? How many have blonde hair?

Johnny is paid a one-time fee of $245.00 for all his jobs. His uncle also pays him $20.00 for each hour that he works. After all of the jobs are complete, Johnnys uncle pays him $2245.00. How many hours did Johnny work on all of the jobs

A card is being drawn from a standard deck of playing cards. Determine whether the events are mutually exclusive or not mutually exclusive. Then find the probability. 11. P (jack or ten)

Is the statement below always, sometimes, or never true? Give at least 2 examples to support your reasoning. The LCM of two numbers is the product of the two numbers?

The table shows the amount of money made by a summer blockbuster in each of the first four weeks of its theater release. Which graph could represent the data shown?

The sum is 8 and whose product is 12

What is 3/5 written as a percent? A 3.5% B 30% C 35% D 60%

How many cups is 2 1/4 + 2 1/4 + 2 1/4 + 2?

A barrel contained 60 gallons of water. water leaked out of the barrel at a rate of 5 gallonsevery 3 days. at this rate, how many days did it take for all 60 gallons of water to leak out of the barrel