18 a. What do the N and S on the diagram represent? 18 b. Identify and explain the phenomenon represented by the arrows on the diagram.

Thoreau’s actions in civil disobedience and the 1955 bus boycott are similar because both thoreau and the boycotters were

Donald is studying the eating habits of all students attending his school. he samples the population by dividing the students into groups by grade level and randomly selecting a proportionate number of students from each group. he then collects data from the sample. which type of sampling is used? select the correct answer below: systematic sampling convenience sampling stratified sampling cluster sampling

What would the world be look like if we live without having news?