A sample of students will be selected from all the students at a high school. Which of the following sampling methods is least l
ikely to produce a representative sample of the students? From a list of all student names, randomly select 50 names from the list for the sample.
A
Randomly choose five classrooms in the school and use all the students in those classrooms for the sample.
B
Divide the students into the four class years (freshman, sophomore, junior, senior) and randomly select students from each year in proportion to the number of students in each year.
C
From a numbered list of all student names, randomly choose a starting point and then choose every tenth student on the list.
D
From a randomly chosen home basketball game, choose every tenth student who enters the gymnasium.
E
We are given that it is a rectangle so its area is the product of the length of adjacent sides.
Length of the horizontal line = 11 - 4 = 7 units ( from the first 2 points) and the length of an adjacent side is 9 - 3 = 6 units (from the second and third points).
