Explain which sampling method is more representative of the population.
a. Katie and Cole live in Springfield, RI, and are
interested in the average number of
skateboarders who use their town’s
Smooth Skate Park in one week. Katie
recorded the number of skateboarders who
used the park in June. Cole recorded the
number of skateboarders who used the park
in January.
b. Fiona and Rachel want to determine the
most popular lunch choice in the school
cafeteria among seventh graders. They
decide to collect data from a sample of
seventh graders at school. Fiona surveys
twenty seventh graders that are in line at
the cafeteria. Rachel surveys twenty seventh
graders whose student ID numbers end in 9.