What is anne frank's overwhelming mood during the second half of 1943?

cheerful

depressed

hopeful

Is it true the ancient egyptians created a calendar that had 10 days in a week

What does the creature say is the reason for his bloodthirsty, fiendish behavior?

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