### Home > INT2 > Chapter 4 > Lesson 4.1.1 > Problem 4-11

4-11.

At Lara’s school,

(student is female)If

out of is male, then what percentage is female? (student is male and does not walk to school)Independent events:

(student walks to school or does not walk to school)Identify the sample space in parts (b) and (c) above as a “union” or an “intersection”.

Refer to the Math Notes box in Lesson 3.1.5 or the definitions of union and intersection in the glossary.