Making Inferences from Data Samples

What type of plots were used to represent the classroom data on siblings?

• Bar plots

• Histograms

• Box plots and dot plots

• Line graphs

Is it true that most students in the class are only children?

• Irrelevant to the data

• Cannot be determined

• False

• True

What percentage of the class data is represented by students with zero siblings?

• 25%

• 30%

• 20%

• 10%

Which statement is true regarding the data analysis of siblings in the classroom?

• Most students have 8 siblings

• No students are only children

• All students have siblings

• Only six students are only children

How many students in the class have more than three siblings?

• 6

• 5

• 4

• 3

What is the predicted number of students with more than three siblings in a school of 1200 students?

• 240

• 300

• 360

• 400

What is the range of the interquartile range (IQR) mentioned in the video?

• 2 to 7

• 3.5 to 8.5

• 4 to 8

• 5 to 9

How many students in the class have between four and eight siblings?

• 11

• 10

• 9

• 8

What is the predicted number of students with 4 to 8 siblings in a school of 1200 students?

• 600

• 800

• 500

• 700

What mathematical method is used to predict the number of students with a certain number of siblings?

• Proportion

• Subtraction

• Division

• Addition