Statistics Sample and Population

According to a random telephone survey, 85% of all working adults in the U.S. are satisfied with their current job. If I asked 500 adults, how many do you predict would be satisfied with their current job?

• 85 adults

• 340 adults

• 500 adults

• 425 adults

Zoie completes a report by asking 70 students across campus. She found that 48% of CTMS students do not wash their hands after using the bathroom. What is the population of her survey?

• the bathroom

• CTMS students

• 48% of students 

According to a random telephone survey of 200 adults, 75% of all working adults in the U.S. are satisfied with their current job. What is the population in this survey?

• 200 adults

• adults in the U.S.

• 75% of adults

What is the mean of the following set of numbers: 4, 8, 12, 16, 20?

Mathematical Equivalence

ON

John wants to find out what the favorite soda flavor is at Menifee County. He decides to ask all the students in Mr. Goldsmith's class as a sample group.

• Biased

• Random

_______ is a part of a group being surveyed.

• Sample

• Population

• Random Sample

• Quartile

A poll is taken from 100 seniors in a high school where the senior class has 575 students.

• Sample

• Population

The table lists five counties with the largest area in Texas. Which measure of center/variation best represents the average size of these counties?

• mean

• IQR

• mode

• range

A table shows the average of 3, 6, 4, 2, and 100. Is this data misleading, why?

• Yes, because 100 is an extreme outlier

• No, because all the numbers are less than 1000. 

• No, because 100 fits into the data set.

• Yes, because 2 is an outlier 

How many more people 19 and under are in the French club than the Spanish club?

• 1

• 3

• 2

• 4