The 2011 roster of the Dallas Cowboys professional football team included 7 defensive linemen. Their weights (in pounds) were 321, 285, 300, 285, 286, 293, and 298. Calculate the mean. Show your work.

Last year a small accounting firm paid each of its five clerks $22,000, two junior accountants$50,000 each, and the firm's owner $270,000. What is the mean salary paid at this firm? How many of the employees earn less than the mean? What is the median salary? Write a sentence to describe how an unethical recruiter could use statistics to mislead prospective employees.

How much disk space does your music use? Here are the file sizes (in megabytes) for 18 randomly selected files on Gabriel's mp3 player.

$$\begin{array}{cccccccc}2.4 & 2.7 & 1.6 & 1.3 & 6.2 & 1.3 & 5.6 & 1.1 & 2.2 \\ 1.9 & 2.1 & 4.4 & 4.7 & 3.0 & 1.9 & 2.5 & 7.5 & 5.0\end{array}$$

Use the dotplot to describe the shape of the distribution of file sizes.

According to a study by Nielsen Mobile, "Teenagers ages 13 to 17 are by far the most prolific texters, sending or receiving 1742 messages a month." Mr. Williams, a high school statistics teacher, was skeptical about this claim. So he collected data from his first-period statistics class on the number of text messages and calls they had sent or received in the past 24 hours. Here are the data:

$$\begin{array}{ccccccccccccc} 0 & 7 & 1 & 29 & 25 & 8 & 5 & 1 & 25 & 98 & 9 & 0 & 26 \\ 8 & 118 & 72 & 0 & 92 & 52 & 14 & 3 & 3 & 44 & 5 & 42 \end{array}$$

Make a boxplot to display the data.

Joey's first 14 quiz grades in a marking period were 86 84 91 75 78 80 74 87 76 96 82 90 98 93. Use the formula to calculate the mean, Check using "I-Var Stats" on your calculator.

Complete the sentence by writing the correct form of the word shown in parentheses. You may not need to change the form that is given.
_____________ The coach behaved like an __________ , refusing to let the players have a say in the decisions that affected the team. (autocratic)

Mr. Cooper decides to hold a contest with his students. He gives teams the following expression and tells them they have one minute to write as many equivalent expressions as they can.

$$\log _{2}(8)+\log _{2}(8)+\log _{2}(8)$$

After 59 seconds Maddie's and David's teams each have six expressions, so when David quickly adds a 9 to his list Mr. Cooper declares, " David's team wins!" "Mr. Cooper," Maddie exclaims, as she rolls her eyes, "You didn't even check to see if all of the expressions were correct." "

$$\begin{matrix}\text{Maddie's Team} & \text{David's Team}\\\mathrm{3 \log _{2}(8)} & \mathrm{\log _{2}(24)}\\\mathrm{\log _{2}(512)} & \mathrm{\frac{\log _{2}(1024)}{\log _{2}(2)}}\\\mathrm{\log _{2}\left(8^{3}\right)} & \mathrm{\log _{2}\left(2^{9}\right)}\\\mathrm{\log _{2}\left(\frac{1024}{2}\right)} & \mathrm{9 \log _{2}(2)}\\\mathrm{\log _{2}(1024)-\log _{2}(2)} & \mathrm{3 \log _{2}\left(2^{3}\right)}\\\mathrm{3 + 3 + 3} & \mathrm{\log _{2}(1024)-\log _{2}(512)}\\ & \text{9}\\\end{matrix}$$

" a. Whose team wins? Why? b. Write three equivalent expressions neither team used. c. Choose one incorrect expression and explain what misconception the students might have had.

Describe an actual situation in which 5 is the practical result of dividing 17 by 4. For example, when you divide 17 soccer balls equally among 4 teams, each team gets 4 balls.

The number of victories varied inversely as the skill of the opponents. The team won 8 games when the opponents had a skill factor of 2. How many victories could be expected when the opponents' average skill factor was 8 ?

Correct the subject-verb agreement errors in the sentence below by writing the correct verb forms on a separate sheet of paper. If a sentence contains no error, write Correct.

Calls from two different locations also help the team.

The East Coast College soccer team is planning to buy new gear for its road trip to California. The cost per shirt depends on the number of shirts the team orders as shown in the following table:

$$\begin{matrix} \text{x (Shirts ordered)} & \text{5} & \text{25} & \text{40} & \text{100} & \text{125}\\ \text{A(x) (Cost/shirt, \$)} & \text{22.91} & \text{21.81} & \text{21.25} & \text{21.25} & \text{22.31}\\ \end{matrix}$$

a. Which of the following functions best models the data? (A) A(x)=0.005x+20.75, (B) $A(x)=0.01 x+20+\frac{25}{x}$, (C) $A(x)=0.0005 x^{2}-0.07 x+23.25$, (D) $A(x)=25.5(1.08)^{(x-5)}$. b. Graph the model you chose in part (a) for $10 \leq x \leq 100$. Use your graph to estimate the lowest cost per shirt and the number of shirts the team should order to obtain the lowest price per shirt.

Which type of graph would best display the contribution of each high school basketball player to the team, in terms of points scored? (A) Bar graph (B) Lfne graph (C) Dcuble-line graph (D) Circle graph

The South Coast College hockey team wants to purchase wool hats for its road trip to Alaska. The cost per hat depends on the number of hats the team orders as shown in the following table:

$$\begin{matrix} \text{x (Hats ordered)} & \text{5} & \text{25} & \text{40} & \text{100} & \text{125}\\ \text{A(x) (Cost/hat, \$)} & \text{25.5} & \text{23.5} & \text{24.63} & \text{30.25} & \text{32.7}\\ \end{matrix}$$

a. Which of the following functions best models the data? (A) A(x)=0.05x+20.75, (B) $A(x)=0.1 x+20+\frac{25}{x}$, (C) $A(x)=0.0008 x^{2}-0.07 x+23.25$, (D) $A(x)=25.5(1.08)^{(x-5)}$. b. Graph the model you chose in part (a) with $\overline{5} \leq x \leq 30$. Use your graph to estimate the lowest cost per hat and the number of hats the team should order to obtain the lowest price per hat.

Write the letter for the correct definition of the italicized word.

The last-minute try at scoring a field goal was a $feeble$ attempt by our team to avoid being held scoreless.
(A) weak
(B) silent
(C) heroic
(D) foolish