Analyzing Data Answers

Look at the graph.

Analyze the scatterplot graph.

Which portrays inadequate data?

A pharmaceutical company claimed that experiments showed that its drug could effectively reduce the growth of cancer cells by 35 percent. However, when five independent laboratories conducted the same experiment, they measured a reduction rate of only 5–8 percent.How did these laboratories show that the pharmaceutical company’s claims were invalid?

A local meteorologist reports the day’s weather."Currently sunny outside, 34°F. Skies will become overcast later this afternoon, as temperatures drop to 25°F, with windy conditions out of the north at 10–15 miles per hour. Radar indicates 2–3 inches of snow expected to fall later tonight.”Which information is qualitative? These are non-numerical, descriptive data.These are numerical data that have been measured.

Look at the scatterplot graph.

A physical science teacher calculates each student’s final grades by using the weighted rubric below. Which type of graph is best suited to show the breakdown of how this teacher weighs each category?

View the frequency distribution graph about people who regularly use a specific cell phone app.