Describing Data

Question 1

A cable company wants to find out the average number of hours its customers spend watching cable television. Which group would best represent a sample of the population?

Revolt · Accepted Answer

D: 100 of the company's customers chosen from the monthly billing list

Question 2

A dentist wants to find out how often her patients floss their teeth. Which samples are biased? Check all that apply.all her patientspatients with no cavitiespatients younger than 18every 20th patientevery patient with braces

Revolt · Accepted Answer

B: patients with no cavities; C: patients younger than 18; E: every patient with braces

Question 3

Daniel used the Internet to research the number of tornados reported in the United States each year for the past 10 years.

Revolt · Accepted Answer

C: published data

Question 4

Which statements are correct about the two-way frequency table? Check all that apply.

Revolt · Accepted Answer

A: The table displays qualitative data.; C: Two teachers do not wear glasses.; E: A total of 6 teachers were polled.

Question 5

Which display shows a data distribution that is skewed right?

Revolt · Accepted Answer

C:

Question 6

Which statement is correct about the time Mr. Lopez’s students spent studying for the final exam?

Revolt · Accepted Answer

C: Most students spent an hour or less studying for the exam.

Question 7

Mia asked 20 random students at her school how many hours they spend on the computer each day.

Revolt · Accepted Answer

D: survey

Question 8

Amelie most frequently swam laps.

Revolt · Accepted Answer

B: 5

Question 9

Beatriz recorded the number of customers entering a store for each hour interval.

Revolt · Accepted Answer

B: observational study

Describing Data Answers

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