Statistics Comparing Data

Which of the following statements is TRUE?

• Informatics and Biology Teachers have the same minimum salary

• Biology teacher has the highest maximum salary

• Spanish teacher's median salary is the highest median salary of the three

• Informatic teachers' salary has the biggest spread of the three

What teacher has the highest possible salary?

• Biology Teacher

• Informatics Teacher

• Spanish Teacher

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 

The graph makes it seem like Cy Young had 3 times as many wins as Jim Galvin. Is this a valid conclusion?

• Yes, because Young only had about 150 more wins

• No, Young did have 3 times as many wins

The graph shows the results of a survey to determine student's favorite pets. Why is this graph misleading?

• The slices are the wrong color

• The slices are not the correct size

• The percents do not add up to 100

• Not misleading

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

I want to compare parts of data to a whole. What data display should 
I use?

• bar graph

• circle graph

• double bar graph

• line plot