Two-Way Tables Answers

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The amount of rainfall each month over the past four years is shown below.

The data is skewed, showing that the majority of the monthly rainfall amounts was between 2.01 and 4 inches.

The data is skewed, showing that the majority of the monthly rainfall amounts was less than 2.01 or greater than 4 inches.

The data is symmetrical, showing that the majority of the monthly rainfall amounts was between 2.01 and 4 inches.

The data is symmetrical, showing that the majority of the monthly rainfall amounts was less than 2.01 or greater than 4 inches.

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Which sample fairly represents the population? Select two options.measuring the height of every fiftieth person on the school roster to determine the average height of the boys in the schoolcalling every third person on the soccer team’s roster to determine how many of the team members have completed their fundraising assignmentobserving every person walking down Main Street at 5 p.m. one evening to determine the percentage of people who wear glassessending a confidential e-mail survey to every one-hundredth parent in the school district to determine the overall satisfaction of the residents of the towntaking a poll in the lunch room (where all students currently have to eat lunch) to determine the number of students who want to be able to leave campus during lunch

measuring the height of every fiftieth person on the school roster to determine the average height of the boys in the school

calling every third person on the soccer team’s roster to determine how many of the team members have completed their fundraising assignment

observing every person walking down Main Street at 5 p.m. one evening to determine the percentage of people who wear glasses

sending a confidential e-mail survey to every one-hundredth parent in the school district to determine the overall satisfaction of the residents of the town

taking a poll in the lunch room (where all students currently have to eat lunch) to determine the number of students who want to be able to leave campus during lunch

A poll is being taken on Wednesday to predict which movie will be the most popular at the city’s movie theaters the next weekend: an animated movie, an action movie, or a romantic comedy. Which group would best represent a sample population?

Every fifth person coming out of the high school.

Every fifth person in the mall’s food court at lunchtime.

Every fifth person coming out of the downtown grocery store at different times throughout the day.

Every fifth person walking down the street in several different locations throughout town at different times of day.

Valeriya wants to determine the likely voting outcome for the new town council election. Which sample is likely to yield the most biased results?

every tenth person working for the largest corporation in town

ten people chosen at random from each page of the town’s phone list

every tenth person walking down Main Street in town on a variety of days and times of the day

ten eligible voters chosen at random from each of the different neighborhoods in town

An Internet and cable-television supplier surveyed a random sample of their customers. The results are shown in the table.Which statement about the two-way frequency table is true?

The survey represents quantitative data.

There is a greater percentage of Internet customers who are not satisfied than cable television customers who are not satisfied.

About half of the customers surveyed are cable-television customers.

About one-fourth of the cable-television customers are not satisfied.

Staff from the school newspaper is taking a poll to find out how students in the school are going to vote in the upcoming election for class president. Which group would best represent a sample population?

Every tenth student staying after school.

Every tenth student in the library at lunch.

Every tenth student in the main hallway between class.

Every tenth student in the student section at the school football game.

Ryan called each school in the district to determine whether or not they have a recycling program. What is true about Ryan’s data collection?

Ryan conducted a survey where he asked about qualitative data.

Ryan conducted a survey where he asked about quantitative data.

Ryan conducted an observational study where he asked about qualitative data.

Ryan conducted an observational study where he asked about quantitative data.

The ages of the people in attendance at the showing of an award-winning foreign film are shown below.

The data is symmetrical, showing that the majority of the attendees were between the ages of 30 and 50.

The data is symmetrical, showing that the majority of the attendees were between the ages of 21 and 60.

The data is skewed, showing that the majority of the attendees were between the ages of 30 and 50.

The data is skewed, showing that the majority of the attendees were between the ages of 21 and 60.

Which is an example of a survey involving quantitative data?

the favorite food of each person

the number of cavities each person has had

the color of the walls in each person’s bedroom

the type of car that each person owns

Darren kept track of the number of e-mails he received from one of his customers each day for 14 days on the dot plot.Which statement must be true according to the dot plot?

The data is skewed left and shows that on half of the days, Darren received 11 or 12 e-mails from the customer.

The data is skewed left and shows that on half of the days, Darren received 7 to 9 e-mails from the customer.

The data is skewed right and shows that on half of the days, Darren received 11 or 12 e-mails from the customer.

The data is skewed right and shows that on half of the days, Darren received 7 to 9 e-mails from the customer.

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