WorksheetsUnit Circle and Stats Quizizz
Total questions: 93
Worksheet time: 16hrs 30mins
On the unit circle, which radian measure represents the point (√3/2 , -1/2)
11π/6
5π/3
7π/6
4π/3
Given the ordered pair (-1/2 , √3/2), what is the value of cosine?
√3
-1/2
√3/2
√3/3
Evaluate sin (7π/6).
1/2
-1/2
√3/2
-√3/2
Evaluate cos (150o).
-1/2
1/2
√3/2
-√3/2
Find θ if sin(θ)=−23 , and θ is in Quadrant III.
4π/3
7π/6
3π/4
5π/4
In which quadrant does θ=210° lie?
Quadrant I
Quadrant II
Quadrant III
Quadrant IV
In which quadrant does θ=43π lie?
Quadrant I
Quadrant II
Quadrant III
Quadrant IV
What ordered pair is associated with θ=35π
(23, −21)
(21, 23)
(−21, 23)
(21, −23)
Evaluate sin(210°)
−23
23
−21
21
Evaluate cos(65π)
−23
23
−21
21
Evaluate sin(240°)
−23
−21
23
21
Which degree is equivalent to 4π ?
210°
45°
150°
60°
What is the coordinate point at 225° on the unit circle?
(22,22)
(−22,22)
(−22,−22)
(22,−22)
What is the order of the coordinate pairs for the points on the Unit Circle?
(tanθ,sinθ)
(cotθ,cosθ)
(sinθ,cosθ)
(cosθ,sinθ)
What are the exact coordinates of
43π on the unit circle?(−22, 22)
(−22, −22)
(−23, 22)
(22,−22)
Which quadrant would you find an ordered pair following this pattern in (−cosθ, −sinθ) ?
Quadrant 1
Quadrant 2
Quadrant 3
Quadrant 4
Which quadrant would you find an ordered pair following this pattern in (cosθ, −sinθ) ?
Quadrant 1
Quadrant 2
Quadrant 3
Quadrant 4
Find all angles that satisfy the equation, sin θ =21
6π
3π
65π
35π
What are the coordinates for 315° on the unit circle?
(21,−23)
(22,−22)
(23,−21)
(1, 0)
A
B
C
D
A
B
C
D
A
B
C
D
Find the missing angles or arcs.
(a)
Find the missing angles or arcs.
(a)
Find the missing angles or arcs.
(a)
Find the missing angles or arcs.
(a)
Solve for x.
(a)
What are the coordinates of the center and the radius of the circle with equation (x - 4)2 + (y - 3)2 = 25 ?
Center (4, 3)
Radius = 5 units
Center (4, 3)
Radius = 25 units
Center (-4, -3)
Radius = 25 units
Center (-4, -3)
Radius = 5 units
The equation of a circle is x2 + y2 + 6x - 12y + 20 = 0. Write the equation in standard form.
(x - 3)2 + (y + 6)2 = 25
(x + 3)2 + (y - 6)2 = 25
(x - 3)2 + (y + 6)2 = 45
(x + 3)2 + (y - 6)2 = 5
The diameter of a circle has length 12. The center is at (−5,2) . Give the equation of the circle.
(x−2)2+(y+5)2=36
(x−5)2+(y+2)2=6
(x+5)2+(y−2)2=36
(x+2)2+(y−5)2=6
In the equation (x−3)2+(y+4)2=121 the diameter of the circle is?
242
11
121
22
Find the center of the circle if the endpoints of a diameter of the circle are at (-12, -7) and (3, 5)
(-9/2, -1)
(-15/2, -6)
(9/2, 1)
(15/2, 6)
Calculate the length of the bold arc.
49.7 ft
15.8 ft
24.9 ft
3.14 ft
Which would be a good Unbiased group?
every third student entering the building
every member of the varsity football team
every member in Ms. Zimmer’s drama classes
every student having a second-period French class
A school newspaper will survey students about the quality of the school’s lunch program. Which method will create the least biased results?
Twenty-five vegetarians are randomly surveyed.
Twenty-five students are randomly chosen from each grade level.
Students who dislike the school’s lunch program are chosen to complete the survey
A booth is set up in the cafeteria for the students to voluntarily complete the survey.
Tamra wants to know how tall college basketball players are in Nebraska, so he asks for the heights of all the players on the Creighton basketball team.
Biased
Unbiased
Erick wants to know how many hours of sleep college students get, so he surveys the 12 students in the front row of his college English class.
Biased
Unbiased
You are doing a survey to find out what kids really think about school lunch and you stand outside a lunchroom and ask every 5th person from every grade.
Biased (Unfair)
Unbiased (Fair)
A principal wanted to see which subject the 695 students in the school liked best. Which choice best represents a sample?
The students making a B in math
The girls in the school
All the students in the school
1 classroom for each grade
A librarian at a school wanted to find out what genre of books students liked most. Which choice best represents a sample?
Every 10th student who walks through the front door of the school
All the teachers at the school
All the students at the school
Students who don't like to read
Complete the definition:
A _______ is a subset of a population
sample
sampel
people
statistics
group
A beverage company wanted to see if people in the United States liked their new logo. Which choice best represents a population?
A selection of logo artists.
Every person in the United States.
A selection of shoppers from different states.
3,800 children age 5 - 15
A survey of 976 American households found that 32% of the households own two cars. Identify the the sample. {hint: a survey of what __)
All American households
976 American households
32% of Americans own two cars
two cars
A survey of 976 American households found that 32% of the households own two cars. Identify the the population. {hint: which group was targeted... used for the survey}
All American households
976 American households
32% of Americans own two cars
two cars
There are 225 7th graders at L&C. You survey 28 of them to find out their favorite food. Which group is the population?
225
28
The cholesterol levels of 20 patients in a hospital with 100 patients.
Population
Sample
The political party of every U.S. President.
Population
Sample
Gwinnett County Public Schools randomly selected 230 teachers to find out which technology resource is the most effective. 30 teachers chose Safari Montage, 45 selected Learn Zillion, 100 chose Ed Puzzle, and 55 chose Kahoot. GCPS concluded that all teachers prefer Ed Puzzle.
Your mother wants to see how many fruits and vegetables you're eating. She asks you and your siblings to keep a food journal for the next month. She will then look through the journals to assess if you're getting enough fruit and vegetables. This is an example of what kind of study?
Survey
Observational Study
Experiment
Population
Nick stood outside a movie theater and asked many of the patrons if they thought the movie they saw was good.
What data collection method was used?
Observational Study
Experiment
Survey
Simulation
Which technique of gathering data do you think might be the most appropriate for the following studies?
a) Effect of a large scale earthquake
simulation
sampling
experiment
census
Elise gave each member of the class a random cookie, some from recipe A and some from recipe B. Then she observed which students returned for a second cookie
What data collection method was used?
Observational Study
Experiment
Survey
Simulation
A beverage company wanted to see if people in the United States liked their new logo. Which choice best represents a population?
A selection of logo artists.
Every person in the United States.
A selection of shoppers from different states.
3,800 children age 5 - 15
A musician wanted to see what people who bought his last album thought about the songs. Which choice best represents a sample? .
Every person who bought the album.
A selection of people who didn't want to buy the album.
250 girls who bought the album
A selection of 3,294 people who bought the album.
A gaming website wanted to find out which console its visitors owned. Which choice best represents a population?
Visitors to the 3DS section.
All of the website visitors.
Visitors to the PS4 section.
Visitors who are on the website for more than 5 minutes.
Before a nation-wide election, a polling place was trying to see who would win. Which choice best represents a sample?
A selection of voters over age 50.
A selection of male voters.
A selection of voters of different ages.
All voters.
A toy store owner tracking how much kids spend each month on toys. Which choice best represents a population?
All of the kids who buy toys.
227 wealthy kids.
228 boys age 7 - 15
235 kids from age 10 to 15.
A mayor wanted to see if the people in his town thought he was doing a good job. Which choice best represents a sample?
1,000 unemployed voters.
The mayor's family.
The residents of the town.
242 voters.
30% out of 200 Mr. Tran’s students earned A for the final grade average from the last semester.
Identify the population {which group was mentioned in the statement }
200 Forest Park students
30% of Forest Park students
200 Mr. Tran's students
30% of 200 Mr. Tran's students
A survey of 1000 patients at Emory hospital found that 40% cases are heart disease treatment. Identify the population
All Emory hospital patients
1000 Emory hospital patients
40% cases
40 hear disease cases.
A survey of 1000 patients at Emory hospital found that 40% cases are heart disease treatment. Identify the sample.
All Emory hospital patients
1000 Emory hospital patients
40% cases
40 hear disease cases.
Complete the definition:
A _________ consists of all subjects (human or otherwise) that are being studied
Statistics
Number
People
Population
Pueblo
Complete the definition:
A _______ is a subset of a population
sample
sampel
people
statistics
group
A computer science teacher wants to know how often students at a school access the Internet. The teacher uses a sample of students from one of her computer classes.
Biased
Unbiased
Your school principal randomly selects 5 students from each grade to complete a survey about school spirit.
Biased
Unbiased
Identify the data collection method:
A park ranger measures and records the heights of trees in a park as they grow.
Experiment
Observational
Simulation
Survey
A researcher uses a computer program to help determine how fast a virus might spread within a city.
Survey
Experiment
Simulation
Observational Study
A researcher places bacteria samples in two different climates. The research then measures the bacteria growth in each sample after 3 days.
Simulation
Experiment
Observational Study
Survey
The admissions office wants to estimate the cost of textbooks for students at the University of Minnesota. The plan is to select 100 students from the math building and obtain their total text book costs. What is the population?
The admissions office
Total textbook costs
100 students from the math building
University of MN students
a method of collecting information about a certain group of people by asking a question or set of questions
survey
results
population
sample
Elise gave each member of the class a random cookie, some from recipe A and some from recipe B. Then she observed which students returned for a second cookie
What data collection method was used?
Observational Study
Experiment
Survey
Simulation
Nick stood outside a movie theater and asked many of the patrons if they thought the movie they saw was good.
What data collection method was used?
Observational Study
Experiment
Survey
Simulation
Steven observed students entering a classroom for class and recorded whether the first half of the students who arrived for class chose to sit in the front half of the room.
What data collection method was used?
Observational Study
Experiment
Survey
Simulation
