“Point-Slope Form Review” Take out a sheet of paper and label the top “Point-Slope Form Review” EOCT REVIEW DAY 2

Unit 8 – Statistics Categorical Data & Frequency Tables Bivariate Data Unit 8 – Statistics Categorical Data & Frequency Tables

So far, this is all we’ve done Categorical Eye Color Grade in school Number of siblings Gender Ethnicity Quantitative Age Height Weight Test Scores So far, this is all we’ve done Two Types of Data

Two-Way Frequency Chart Shows how 2 categories relate to each other The number in the cell tells us the frequency How many females take Latin? School Club Gender Male Female Totals Band 12 21 33 Chorus 15 17 32 Chess 16 3 19 Latin 7 9 Yearbook 28 35 78 57 135 9 Two-Way Frequency Chart

Use the cell total divided by the table total Use the cell total divided by the table total. Find the probability of selecting a… Female chorus student. Male band member. Female chess player. School Club Gender Male Female Totals Band 12 21 33 Chorus 15 17 32 Chess 16 3 19 Latin 7 9 Yearbook 28 35 78 57 135 17/135 12/135 3/135 Joint Frequencies

Notice, these all only deal with ONE category! Use the column/row total. divided by the table total. Find the probability of selecting a… Band member. Male student. Yearbook member. Notice, these all only deal with ONE category! School Club Gender Male Female Totals Band 12 21 33 Chorus 15 17 32 Chess 16 3 19 Latin 7 9 Yearbook 28 35 78 57 135 33/135 78/135 35/135 Marginal Frequencies

Conditional Frequencies Use the cell total divided by the row/column total. Find the probability of selecting a… Female student if we know she is in chorus. Male, given he plays chess. Male student, given he is in the band. School Club Gender Male Female Totals Band 12 21 33 Chorus 15 17 32 Chess 16 3 19 Latin 7 9 Yearbook 28 35 78 57 135 17/32 16/19 Condition – tells us what our denominator will be 12/33 Conditional Frequencies

Handout! We’ll be in trailer 14 on Monday! CLASSWORK