An informed guess or assumption about a certain problem or set of circumstances is known as.

How much of the united states female population works outside of the home? a. half b. two-thirds three-quarters d. one-third select the best answer from the choices provided.

What nitrogenous bases are found in rna

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