Level Master

This is a chart showing the number of people who visited Wendy’s last week. Which feature of the graph may be misleading?

Question 1

A) The intervals are too big. B) The vertical scale increases by 20. C) The vertical scale is not consistent. D) The scale does not start at 0.

Question 2Number of days with Freezing Temps.

Graph 2

If one person looked at Graph 1 and another person looked at graph 2, they would likely get different impressions. What would most likely cause the people to come to different

conclusions?

A.The titles are different. B.The intervals are different on the axis. C.There is no data for 0-81 on Graph 1.

D.The scale does not start at 0 on Graph 1.

Graph 1

Yearly Freezing Temperature Days

Question 3This is a graph showing the

percent of students who voted for their favorite

pets. Ms. Green concluded that Hamsters are the second favorite pets.

What feature of this graph could cause this conclusion to be

inaccurate?

A) Other and Hamsters are equally popular. B) One of the pets in the “other” category could be

more popular than Hamsters. C) Snakes are not represented in the graph. D) The animals in the “other” category are not

listed.

Question 4

Which feature of this graph could be

misleading?

A) The scale on the y-axis increases by 2. B) The bars are all the same color. C) The bars do not represent the same span of meters. D) The x-axis uses meters instead of feet.

This graph shows the inches of rainfall in Middle Tennessee over the past week. Which feature of

this graph could be misleading.

Question 5

A) The y-axis does not start at 0B) The time spans on the bars are not identical. C) The graph does not show enough time to be useful. D) The scale on the vertical axis does not go up by even increments.

Question 6Number of Minutes to Finish Game

The graph shows the amount of time

it took to finish a game of Zap. Which

feature of the graph could be

misleading?

A) The bars should be vertical instead of horizontal. B) The time span on the bars are of different intervals. C) The title of the graph is not descriptive enough. D) The intervals on the x-axis do not increase the same amount each time.

Question 7

What feature of this graph could be misleading?

a)The y-axis does not start at zero.

b)The intervals on the vertical scale are not consistent.

c)Not every possible subject is represented.

d)The scale on the vertical axis is too small.

Question 8The graph represents the

millions of people who switched to AT&T. An AT&T

executive said that the number of people switching has not

increased by much over these 4 years. What feature of this

graph could cause him to come this conclusion?

A.The graph does not start at zero.

B.The intervals on the vertical axis are too big.

C.There are not enough years represented.

D.The intervals on the horizontal axis are too small.

Question 9Which feature of this graph may be misleading?

A)The title is not appropriate.B)There are not enough years. C)The intervals on the vertical axis are too big. D)The intervals on the horizontal axis are too small.

Question 10

Arnie uses Graph 1 and Barry uses Graph 2. Which misleading feature might cause them to come to different conclusions about the annual snowfall?

A) There is no data for 0-15. B) There is break in the vertical axis on graph 2. C) The bars are not spaced out appropriately. D) The y-axis scales are different

Question 11

The administration at LMS wants to know what would be the best time to have a school dance. Who should they ask to ensure the least biased

sample.

A)Every person who enters Walmart from 4-6 p.m. B)The boys basketball team.

C)Every 3rd person to enter the school. D)The math teachers.

Question 12

Student Survey Method

Paola Asked 200 6th graders.

Mason Asked 100 6th graders.

Jonathan Asked 50 people in the auditorium

Meret Asked 100 people in the auditorium.

Four students wanted to survey the school about Pi Day. Who’s sample would be the least biased?

A.Paola’sB.Mason’s

C.Jonathan’sD.Meret’s

Question 13

Mrs. Dykes’ math class wanted to survey people about their favorite food. They asked 70 people leaving McDonald’s on Friday. What best explains why their sample may be biased?

A)The asked too many people. B)The only surveyed for a short period of time. C)The survey was too broad of a question. D)They only asked people outside of McDonald’s.

Question 14

The county wants to conduct a survey about the amount of testing needed. Which method will best ensure that the sample is not biased?

a)Ask the students at LMS. b)Ask the teachers during a busy week.c)Ask the teachers by putting a questionnaire on the county website. d)Ask the employees of the county.

Question 15

A survey was conducted to find out if the city should put more funding into the Art program. Which sample would give the least bias?

A)100 students at a Middle school. B)The students in Art class. C)The students in Mr. Seymore’s 7th period. D)100 students in band.

Question 16A survey wants to know if students enjoy math class. Which sample would be the least biased?

A)Ask 100 students on the day of the math benchmark. B)Ask 50 students on a day we play Zap review game. C)Ask the students in Mrs. Richardson’s advanced math class. D)Randomly select 10 students from every advisory class.

Question 17

A department store wants to conduct a survey to see if the customers would like more options in the shoe department. Who should they ask?

A)Every 5th person who walks in the store B)Girls ages 14-28 on the mailing list. C)Boys, ages 10-12 at the local middle school. D)Senior Citizens at the food court in the mall.

Question 18

Student Survey Method

Christian Asked 50 students in Drama Club

Jennifer Asked 100 students in Drama Club.

DJ Asked 100 people in all of the first lunches.

Kinzlee Asked 50 people in all of the second lunches.

Four students wanted to survey the school the upcoming play, “Annie”. Which student will get the least biased results?

A.Christian’sB.Jennifer’s

C.DJ’sD.Kinzlee’s

Question 19

Target wants to conduct a survey as to whether they should extend their toy section. Who should they survey to get the least biased sample?

A)People who recently purchased toys in their store. B)The people who have frequent shopper cards. C)People who shopped at the store on Black Friday. D)The students at Roy Waldron Elementary.

Question 20

A local bookstore wants to know which books they should carry the most of. Which sample would give the least bias?

A)The people who are members of the stores email list. B) The employees.C) The people leaving the theatre after the “Divergent” premier. D)The people in the Cooking Books section of the store.

Question 21

The eighth graders on the Yearbook staff are conducting a survey about the best TV shows. What sample would give the least bias?

A)All of the teachers. B)60 boys from each grade. C)Girls at every lunch table. D)Randomly choose 15 students from each purpose class.

Question 22The Smyrna Town Centre wants to know if they should add more work out equipment to the fitness area. Who should they survey to get a sample that has the least bias?

A)The people who attend the Town Centre weekly. B)All of the people in the fitness area on a day when there are a lot of people working out. C)50 people that are ages 70 and older. D)50 people that are ages 14 and younger.

Answer Key!1. D2. B3. B4. C5. D6. B7. B8. B9. C10. D11. C12. D13. D14. C or D15. A16. D17. A18. C19. B20. A21. D22. A