Section 6: Frequencies, Percentages, And Proportions

Question 1

“In descriptive statistics, the letter N stands for number of participants in a population.” This is true or false

Answer 1

True

Question 2

If there are 2,000 adult citizens in a town and 20% favor building a new public library, how many favor it?
A. 200
B. 400
C. Some other number

Answer 2

B. 400 – x/2000 = 20/100

Question 3

If 25 out of 100 parents favor an extended school day, what percentage favors it? 
A. 2.5
B. 25
C. 50 
D. Some other number

Answer 3

B. 25

Question 4

“For a percentage of 79% the corresponding proportion is .79.” This statement is true or false

Answer 4

True

Question 5

Proportions are usually easier to interpret than percentages.” This statement is true or false

Answer 5

False