Deck 9: Frequencies, Percentages, and Proportions

Question 1

If a score 14 occurs 5 times in a given data, what symbol is used to indicated the repetition?

A) N
B) f
C) %
D) F

Answer 1

B

Question 2

To calculate percentage use

A) Multiplication
B) Division
C) Addition
D) Subtraction

Answer 2

B

Question 3

A proportion is part of

A) 100.
B) 10.
C) 1.
D) 1000.

Answer 3

C

Question 4

If 21% of kindergarten children are afraid of monsters, how many out of 100 are afraid? And how many are not afraid?

Question 5

A particular test has 20 questions. If Peter gets 80% correct, how many questions did he missed?

Question 6

Express proportions in percentages.
a. .939 - ___________
b. .25 - ___________
c. .792 - ___________

Question 7

When reporting percentages, why is it a good idea to also report the underlying frequencies?

A) Percentages alone can sometimes be misleading
B) Percentages fail to provide sufficient information
C) Percentages is not as good as frequencies when describing data
D) Both a & b
E) Both b & c