
Directions: Read carefully.
1. 
The 4legged Market sells everything relating to dogs, cats and horses. The store offers weekly specials, and wants to estimate the percentage of their customers who buy the specials. A random sample of 150 customers who buy horse feed over a 6 month period was used. It was found that 30% of these customers bought weekly special items. Which statement about the sample group is true? 



2. 
The heights (in inches) of the students in two Scouting Troops were surveyed.
Troop A: 60, 65, 64, 68, 66, 63, 64, 68, 67, 62
Troop B: 67, 69, 62, 60, 61,
64, 63, 65, 65, 61
Which of the following statements is true?



Choose:


3. 
Student Council is trying to decide upon a theme for the spring dance. They have narrowed the choices to four options and are going to survey the 8th grade class.
Which method would produce the best representative sample? 

Choose:


4. 
The box and whisker plots at the right, show the semester test scores in History class for students Kyle and Amira.
Which conclusion can be drawn from these box plots?

Exam Scores for History Class


Choose:


5. 
In gym class, groups of 12 students are given a designated amount of time to complete as many situps as possible. A goal of 55 situps is desired. The number of situps completed in the given amount of time are shown in the following dot plots.
Which of the following statements regarding the situps is NOT true? 

Choose:


6. 
The high school cafeteria has decided to add more options to the school menu. Randomly chosen students from each class were surveyed as to which of three options they would like to see in the cafeteria. The students' choices are shown below.
Class
MathBits 
Salad Bar 
Vending Machines 
Buffet Items 
Freshman 
20 
18 
15 
Sophomore 
18 
21 
24 
Junior 
20 
20 
12 
Senior 
14 
18 
13 


a) What percent of the students in the Sophomore Class chose the Vending Machines?
Choose:


b) The total number of students wanting the Salad Bar is how many times as great as the total number of students wanting the Buffet Items?
Choose:


c) Of the students surveyed, which class displayed the largest percentage in favor of the Vending Machines?
Choose:


7. 
Data is collected on two new startup companies, each having four employees. The ages and salaries of the employees are collected.
Company 1

Company 2

Which of the following statements is true regarding this data?
Choose:


8. 
A college math class posts test scores (using student social security numbers). All of the students taking the test scored over 70% correct. Unfortunately, 5 students were absent for the test and the computer listed their scores as 0 until the test is taken. Assuming that no score repeated more times than the 0's, what measure of central tendency would most likely give the best representation of this data at this time?
Choose:


9. 
A survey was conducted of 150 randomly selected students asking:
"Which social media do you check first at the end of a school day?".
The results are shown below:
Twitter 
Facebook 
YouTube 
Instagram 
37 
48 
32 
30 MathBits 
The results of this survey are used to make a generalization regarding all of the 650 students in the school building. Based upon this survey, what would be the number of students in the building who first check Facebook at the end of the school day?
Choose:


10. 
Cars were recorded as they passed through a 55 mph speed trap during the morning and the afternoon in a small town. The first fifteen cars in each time study are shown below.
Which of the following statements is true regarding this data?
Choose:


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