Sampling

What is the interquartile range (IQR) for number of books read in the 5th grade based on the box plot?

A movie theater is showing three different movies. The dot plots represent the ages of the people who were at the Saturday afternoon showing of each of these movies. Which movie had the highest overall age?

The Department of Natural Resources wants to determine the average weight of fish in the United States. What is the population of this question? How could you gather a representative sample to answer this question?

Which dot plot is the least variable?

Is there a meaningful difference between Group A and Group B? Use variability and mean or median in your answer.

Would you use mean or median to represent this data? Why?

Ten sixth-grade students recorded the amounts of time each took to travel to school. The mean travel time for these students is approximately 9 minutes. The MAD is approximately 4.2 minutes. Based on the information, would another sample