Blog

(Data Displays MC)Which of the following is the best type of display for the given data? Time (in seconds) 12 18 22 54 72 Depth (in meters) 10 12 15 25 31

(If…Then Statements MC)Given the statement, rewrite it as the biconditional statement p ↔ q.Statement: The cookie jar is filled with chocolate chip cookies.

(Linear Models MC)A theater manager collected data about ticket prices and attendance for an upcoming opening night. The results were used to calculate the model ŷ = –3.72x + 540.65, where x represents the selling price in dollars and ŷ represents the predicted number of tickets sold. Interpret the slope of the model in the context of the problem.

(If…Then Statements MC)Given the statement, rewrite it as the biconditional statement p ↔ q.Statement: The cookie jar is filled with oatmeal raisin cookies.

(Interpreting Data Distributions MC)The display shows data collected from a group of volunteers who attended a community service meeting.How many volunteers gave the reason Career Development or Social Connections?

(Data Displays LC)What type of data are represented in the table? Nonfiction Action Fantasy Comedy Romance Frequency 289 155 87 92 104

(Exponential Models MC)The level of fame of an artist is assigned from 1 to 10, with 10 signifying the most famous artist. Data are collected about selling prices for painting and the level of fame of the artists. The model ŷ = 948.25(2.998)x is calculated, where x represents the artist’s fame score and ŷ represents the predicted selling price of the painting. Use the model to predict the selling price of a painting whose artist’s fame is a level 4.

  (Comparing Data LC)Calculate the mean for each data set. Set A 14 15 19 23 24 26 28 31 Set B 5 7 8 11 14 17 18 21

  (Linear Models MC)A theater manager collected data about ticket prices and attendance for an upcoming opening night. The results were used to calculate the model ŷ = –9.34x + 602.45, where x represents the selling price in dollars and ŷ represents the predicted number of tickets sold. Interpret the slope of the model in the context of the problem.

(Interpreting Data Distributions HC)Data were gathered and displayed in the stem-and-leaf plot. 1 7 7 7 7 8 2 0 0 1 4 5 7 8 9 3 0 1 2 2 2 4 5 8 8 4 1 2 3 3 3 4 5 7 8 9 5 0 1 4 4 4 5 5 6 6 1 2 3 4 7 7 Key: 1|7 represents 17 Part A: Identify the shape of the distribution. (2 points)Part B: Suppose an outlier is added to the data set. If the resulting mean is lower with the outlier than without, state a possible value of the outlier. Justify the answer. (4 points)Part C: Which measure is more appropriate to use to describe the shape of the distribution? Justify the answer based on the shape of the distribution. (4 points)