Which value represents the number of student smokers who have a parent who smokes?a = 50b = 170 c = 50d = 730

To determine which value represents the number of student smokers who have a parent who smokes, we need to analyze the options provided:

1. Option a: 50
2. Option b: 170
3. Option c: 50
4. Option d: 730

Based on typical representations in surveys or studies, the value representing student smokers who have a parent who smokes is often derived from a specific criterion in a dataset or study. The repetition of 50 in options a and c may indicate a significant finding, while the other options are considerably larger.

Without additional context or data specifying how these values relate to the number of student smokers with smoking parents, it is difficult to definitively identify one specific value as correct. However, if a study suggests a number frequently found in smaller scale surveys (like around 50), then either Option a (50) or Option c (50) may likely represent the student's parent smoking population.

In conclusion, based on typical data patterns, the best estimate for the number of student smokers who have a parent who smokes is 50.