Question

Suppose a student named Marcus wants to learn about the sleeping habits of students in his class. Marcus wants to collect data from his classmates to learn how many hours of sleep his classmates get. He then wants to process this data with a computer and visualize it in a Histogram. Which of the following would be the best technique for Marcus to collect this data?

a. Marcus should ask each of his classmates to write down on a piece of paper how many hours of sleep they get per night and hand the paper to him.
b. Marcus should have them download an app that tracks their phone geolocation and activity so he can see when their phones are in their rooms and not being used. From this data he can figure out how long each student sleeps.

Answer 1

To collect data on his classmates' sleeping habits, Marcus should ask them to write down how many hours of sleep they get per night and hand it to him. He can then process and visualize the data in a Histogram.

Step-by-step explanation:

To collect data on the sleeping habits of his classmates, the best technique for Marcus would be option (a), which is asking each classmate to write down on a piece of paper how many hours of sleep they get per night and hand it to him. This method allows Marcus to directly collect the data from his classmates and ensures that he receives accurate information about their sleeping habits.

Once Marcus has collected the data, he can process it with a computer and visualize it in a Histogram. A Histogram is a graphical representation of data that uses a series of rectangles to represent the frequencies of different data ranges. In Marcus' case, he can use the hours of sleep as the data range and the frequency as the height of each rectangle to show how many classmates sleep for a particular number of hours.

For example, if Marcus' classmates reported sleeping for 6, 6, 7, 7, 8 hours, the Histogram would have a rectangle with a height of 2 for the data range of 6-7 hours and a rectangle with a height of 1 for the data range of 8-9 hours.

Answer 2

The best way for Marcus to collect data is by having classmates write down their sleep hours on paper, as this method is simple and respects privacy, enabling him to create a histogram.

Step-by-step explanation:

The best technique for Marcus to collect data on the sleeping habits of his classmates is option a. Marcus should ask each classmate to write down on a piece of paper how many hours of sleep they get per night and hand the paper to him. This method respects the privacy of the students and is simple to execute.

Moreover, it is straightforward for Marcus to collect the data and later enter it into a computer for processing and creating a histogram. Option b is less desirable because it involves privacy concerns and reliance on technology that may not accurately reflect sleep habits, as phone usage can vary.