Organizing Data

Question 1

The scatter plot shows the study time and test scores for the students in Mrs. Johnson’s English Literature class. Based on the results, which of the following is an appropriate score for a student who studies for 1 hour?

Revolt · Accepted Answer

82

Question 2

Suppose you were to create a scatter plot of the data for speed and distance traveled. Would you expect to see a positive, negative , or no relationship betwen the two variables. Explain your answer.

Revolt · Accepted Answer

positive relationship; as the speed increases, the distance increases.

Question 3

Determine whether the graph shows a positive correlation, a negative correlation, or no correlation. If there is a positive or negative correlation, describe its meaning in the situation. Domestic Traveler Spending in the U.S., 1987-1999 Year Source: The World Almanac, 2003

Revolt · Accepted Answer

positive correlation; as time passes, spending increases.

Question 4

Determine whether the graph shows a positive correlation, a negative correlation, or no correlation. If there is a positive or negative correlation, describe its meaning in the situation. Sport Utility Vehicle Sales in the U.S., 1991-2001 Year Source: The World Almanac, 2003

Revolt · Accepted Answer

positive correlation; as time passes, the SUV sales increase.

Question 5

The following table gives the number of chicken pox cases after 1988. The variable x represents the number of years after 1988. The variable y represents the number of cases in thousands. Year Reported Cases (thousands) 1989 185.4 1990 173.1 1991 147.1 1992 158.4 1993 134.7 1994 151.2 Which scatter plot most accurately depicts the data on the table. a. b. c. d. Please select the best answer from the choices provided

Revolt · Accepted Answer

B

Question 6

Eight people of various ages were polled and asked to estimate the number of CDs they had bought in the previous year. The following table contains the collected data. The variable x represents the age. The variable y represents the number of CDs.. Age Number of CDs 18 12 20 17 24 10 25 6 28 4 30 4 32 2 34 3 Using the data in the table, choose which set of axes and which set of ordered pairs should be used in making a scatter plot of the data. Graph A Graph B Set A (18, 12), (20, 17), (24, 10), (25, 6), (28, 4), (30, 4), (32, 2), (34, 3) Set B (12, 18), (17, 20), (10, 24), (6, 25), (4, 28), (4, 30), (2, 32), (3, 34)

Revolt · Accepted Answer

Graph B, Set A

Question 7

Determine whether the graph shows a positive correlation, a negative correlation, or no correlation. If there is a positive or negative correlation, describe its meaning in the situation. Consumer Price Index, 1950-2002 Year Source: Bureau of Labor Statistics, U.S. Dept. of Labor

Revolt · Accepted Answer

positive correlation; as time passes, the CPI increases.

Question 8

The following is a scatter plot of the heights and weights of the students in Mr. Baldwin’s PE class. What is the weight of the student who is 75 inches tall? Does the scatter plot show a positive or negative correlation?

Revolt · Accepted Answer

About 185 pounds; positive correlation

Question 9

Determine whether the graph shows a positive correlation, a negative correlation, or no correlation. If there is a positive or negative correlation, describe its meaning in the situation. Cars Passing School

Revolt · Accepted Answer

no correlation

Question 10

Suppose you were to create a scatter plot of outside temperature and amount of heating bill. Would you expect to see a positive, negative, or no relationship between the two variables. Explain your answer.

Revolt · Accepted Answer

negative relationship; as the outside temperature decreases, the amount of the heating bill increases

Organizing Data Answers

More from this Course

TRY EDGENUITY HACKS