A statistics teacher has 4 periods of introductory statistics. She wants to get students’ opinions on a new homework policy. To
get a sample, the teacher randomly selects 1 period and surveys all of the students in that class. Which sampling method was used? A.) cluster sampling
B.) simple random sampling
C.) stratified random sampling
D.) systematic random sampling
If one foot in real is 1/2 inches, then 1 inch in a blueprint is 2 feet. So a rectangle 18 by 22 inches will represent 18 * 2 by 22 * 2 feet in real. So the size of the yard is 36 by 44 feet.
