Based on MTF2011 data, we present the cross-tabulation for student race and how many of their friends smoke marijuana. [In SPSS Exercise 5, we examined the relationship between student race and friends who smoke cigarettes or drink alcohol.]

a. Identify the dependent and independent variables for this table.
b. What proportion of black, white, and Hispanic respondents reported that most or all of their friends smoke marijuana? Calculate these proportions separately.
c. Explain the relationship between student race and the number of friends who smoke marijuana.

Figure 10.16 FRWEED by Race Cross-Tabulation frweed How many friends smoke marijuana? race Respondent's race (trichotomized B/WH) Croastabulation Count race Respondentu race (trichotomized B/WH) 3 HISPANIC: Total 1 BLACK(1) 2 WHITE 12 138 1 NONE:(1) 2 A FEW (2) 3 SOME:(3) 4 MOST (4) 5 ALL:(6) 50 trweed How many friends smoke 36 53 53 284 34 208 278 maruana? 47 184 789 186 1154 179 Total