

1. 
Which statistic is misleading in the following set of test scores? 2, 85, 87, 88, 89 


A. 
mode 
B. 
mean 


C. 
upper quartile 
D. 
median 


Hint 


2. 
Which is not a reason that measures of central tendency for a set of data can be misleading? 


A. 
inaccurate data 
B. 
incomplete data 


C. 
outliers in the data 
D. 
too much data 


Hint 


3. 
An automobile dealer wants to sell a certain car for $20,000. If three other dealers in town are selling the same car for $15,000, $15,000, and $30,000, which measure of central should the car dealer use to describe this data to his customers? 


A. 
mode 
B. 
range 


C. 
median 
D. 
mean 


Hint 


4. 
Both bar graphs show the amount it costs to heat a twostory house during the winter. Which graph is misleading? Explain. 





A. 
Graph B; there is a break in the vertical scale, the cost of heating the house in January appears to be much greater than heating the house in November. 


B. 
Graph B; the months are not ordered from least to greatest cost. 


C. 
Graph A; the months are not ordered from greatest to least cost. 


D. 
Graph A; there is no break in the vertical scale, the cost of heating the house in December and February are about the same. 


Hint 


5. 
The line graph shows the average price of gas for one recent month in Austin, Texas. Why is the graph misleading? 





A. 
The horizontal scale is missing the oddnumbered days. 


B. 
The vertical axis is not labeled. 


C. 
It shows that the highest price occurred at the beginning of the month and the lowest price occurred at the end of the month. 


D. 
It shows that price of gas changed dramatically during the month. 


Hint 


