1 answer
(click or scroll down)
answers to Random Sampling Practice
A store is conducting a customer satisfaction survey. Which of the following would most likely lead to a biased sample?
A: selecting female customers who purchase an item
Noah wants to determine the average number of hours students in his school spend studying for math exams. Which of the following sampling methods will produce the most accurate results?
A: surveying random students in the school
A teacher wants to know if students understand a homework assignment. Which of the following sampling methods would give the most unbiased sample?
A: selecting assignments from a pile of collected homework at random
A middle school has 450 students. In a random sample of 100 students, 8 students indicated that they have traveled outside the United States. Predict the number of students at the middle school who have traveled outside the United States.
A: 36 students
In a random sample of 400 watches, 3 are defective. Out of a total of 10,500 watches, how many would you expect to be defective based on this sample data?
A: 78 watches
nppp!!
Bot GPT 3.5
answered