Unit Review: Scatter plots & two-way tables

O.1Describe each association: positive linear, negative linear, nonlinear, or no association.

1. 1
   Association: 
2. 2
   Association: 
3. 3
   Association: 
4. 4
   Association: 

O.2Use the line of best fit to answer each question.

1. 5
   The line of best fit for minutes of practice ($x$) and words typed per minute ($y$) is $y=2.1x+10$. Predict $y$ when $x=14$.

O.2Use the line of best fit to answer each question. (continued)

1. 6
   The line of best fit for days of training ($x$) and push-ups done ($y$) is $y=5.5x+37$. Predict $y$ when $x=18$.
2. 7
   The line of best fit for hours studied ($x$) and test score ($y$) is $y=5.2x+13$. Predict $y$ when $x=19$.

O.3Use the two-way table to answer each question.

1. 8

   	Walks to school	Rides to school	Total
   Has a pet	12	38	50
   No pet	16	9	25
   Total	28	47	75

   What percent of the students with a pet ride to school?
2. 9

   	Passed	Did not pass	Total
   Morning class	30	39	69
   Evening class	4	12	16
   Total	34	51	85

   What percent of the students in the evening class passed?

O.3Use the two-way table to answer each question. (continued)

1. 10

   	Passed	Did not pass	Total
   Morning class	38	12	50
   Evening class	13	15	28
   Total	51	27	78

   What percent of the students in the morning class passed?

O.1Describe Scatter Plots

1. 1negative linear
2. 2positive linear
3. 3negative linear
4. 4no association

O.2Predict with Lines of Best Fit

1. 5$39.4$
2. 6$136$
3. 7$111.8$

O.3Two-Way Frequency Tables

1. 8$76\%$
2. 9$25\%$
3. 10$76\%$