This grade 8 two way tables quiz asks 10 multiple-choice questions on two-way tables, and each answer comes with a short explanation.
Ten multiple-choice questions check your skill with two-way tables: reading counts, choosing the right total, finding relative frequencies, and deciding about association. Pick the one correct answer, then read the explanation to learn from any mistake.
Grade 8Common Core: 8.SP.A.4
🎯 Two-Way Tables – Grade 8 math quiz
Score: 0 / 10
Answered: 0 / 10
Question 1
How many boys chose basketball?Sport choice by group.
A25
B15
C18
D43
Question 2
Use the same table. How many students chose soccer in all?
A22
B15
C43
D37
Question 3
Use the same table. What percent of all 80 students are girls who chose basketball?
A45%
B22.5%
C41.9%
D18%
Question 4
Use the same table. What percent of the boys chose basketball?
A58.1%
B31.25%
C37.5%
D62.5%
Question 5
Use the same table. Of the students who chose soccer, what percent are girls?
A55%
B59.5%
C27.5%
D40.5%
Question 6
The bars show the sport choices of girls and boys. What do they suggest?Sport choice, row percents.
AA possible association: boys are more likely to choose basketball
BNo association: both groups chose both sports
CGirls and boys chose basketball equally often
DGirls are more likely to choose basketball
Question 7
Which statement is correct?Pet choice by grade.
AAssociation: more eighth graders chose dogs (36 versus 30)
BAssociation: 50% of seventh graders chose dogs
CNo association: 60% of each grade chose dogs
DNo association: the two grades have different totals
Question 8
Use the pet table. Which fraction gives the percent of seventh graders who chose cats?
A\(\frac{20}{50}\)
B\(\frac{20}{44}\)
C\(\frac{20}{110}\)
D\(\frac{20}{30}\)
Question 9
A club has 120 girls and 60 boys. Of them, 54 girls and 36 boys signed up for a trip. Who is more likely to sign up?
AGirls, since 54 is greater than 36
BEqually likely, since 54 and 36 are both under 60
CBoys, since 60% of boys signed up versus 45% of girls
DGirls, since there are more girls in the club
Question 10
What is the missing value, shown as a question mark?A two-way table with one missing cell.
A16
B14
C32
D12
🎉 Quiz complete!
0 / 10
How does this quiz work?
Read each question, choose one answer among A, B, C and D, then check it: a short explanation appears after every answer. Your score out of 10 is shown at the end, and you can restart the quiz as often as you like.
What should you review before the quiz?
Reread the key facts of the lesson and the worked example. If a question is hard, go back to the matching part of the lesson, then try the quiz again. Write your work on scrap paper: most mistakes come from skipping a step, not from the idea itself.
Remember:
Standard 8.SP.A.4: build and interpret two-way tables, and use relative frequencies to describe possible association.
Inner cells are joint frequencies; the bottom row and right column hold the totals.
Relative frequency = a count divided by a row total or a column total.
Noticeably different row percents suggest an association; about equal row percents suggest none.
Compare percents, not raw counts, because the groups can be different sizes.
How to use this grade 8 two way tables quiz
Retake this grade 8 two way tables quiz until every answer is right, then move on to the worksheet and the test.
