Bell Ringer: What type of correlation is seen here: Friday, February 4th Bell Ringer: What type of correlation is seen here: NEGATIVE CORRELATION

Now let’s review the HW (0, 8) (10, 2)

Write the equation (0, 8) (10, 2)

(0, 8) (10, 2)

Now let’s review the HW (0, 8) (10, 2)

Key Points Correlation: how x relates to y Trend lines: Predictions Positive Negative None Trend lines: Lines that summarize the correlation in data Predictions We can use trend lines to make predictions

Objective: I CAN determine the equation of the line of best fit

Which LINE WOULD YOU CHOOSE?`

What do you want to know?

Here is what I will give you

What is type of correlation do we see here?

Now let’s draw the trend line (9, 66) (22, 135) Now let’s draw the trend line

Write the equation (9, 66) (22, 135)

(4, 52) (12, 82)

Answer these questions with your partner What does the slope represent? What does y – intercept mean? The number of seconds per item How long it takes to check out zero items time to say “hello, how are you doing?”

Homework Finish the problems on the back of the sheet There will be a 5 question ten minute quiz It will be just like the problems on the back of the sheet

Toaster Video

Toasters How long will the 9th toaster run for

(5, 126) (4, 114) (3, 102)

Answer these questions with your partner What does the slope represent? What does y – intercept mean? Predict how long will the 9th setting go for? Number of seconds per setting No meaning 174 seconds = 2 mins 54 secs

Let’s Check our answer

Do you want to see the toast

HW + the quiz Finish the back of the sheet If you can answer those questions you will good for tomorrow’s quiz