In 2010, 1250 U.S. college students expecting to graduate in the next several years were surveyed. Respondents were asked the following question. 241 What do you think your starting salary will be at your first job after college? A 20- * 16- 3 12- The line graph shows the percentage of college students who anticipated various salaries. The model p= - 0.01s +0.8s + 3.8 describes the percentage of college students, p, who anticipated a starting salary, s, in thousands of dollars. Complete parts (a) and (b) below. 20 30 40 50 60 70 Anticipated Starting Salary (Thousands of Dollars) a. Use the line graph estimate the percentage of students who anticipated a starting salary of $30 thousand. (Type a whole number.) b. Use the formula to find the percentage of students who anticipated a starting salary of $30 thousand. (Type an integer or a decimal.) How does this compare with your estimate in part (a)? O A. It is equal to the estimate. O B. It is greater than the estimate. O C. It is less than the estimate.

2 (5.7.2) On October 20, 2011 the Elizabeth Warren campaign provided The Boston Globe with the data we used to draw Figure 5.5. The first bar in the chart shows the total dollar contributions to her campaign, broken down according to where the money came from (Massachusetts vs. out of state). The second bar shows the total number of donors, broken down the same way. a. What was the average donation (per donor)? b. What was the average donation from Massachusetts? c. What was the average donation from outside Massachusetts? d. Check that calculating appropriate weighted average of your answers in parts b and c gives the answer you found in part a. 85 69% dollars $3.14m 31% 79% 21% donors 56k Massachusetts out of state Elizabeth Warren's Fundraising Figure 5.5. Where did the money come from? [R152]

What is the purpose of a Data Dashboard? If you were the manager of a restaurant, for example, what 5 key metrics would you want to display on a Data Dashboard?

Mrs. Hoover wanted to know which cookies kindergartners in Spring School District like best. Three hundred students were asked their favorite kind of cookie. The results are displayed in the graph below.   About how many kindergartners prefer chocolate chip?