Organizing Data Answers

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. a. no relationship. b. positive relationship; as the outside temperature decreases, the amount of the heating bill increases. c. positive relationship; as the outside temperature increases, the amount of the heating bill increases. d. negative relationship; as the outside temperature decreases, the amount of the heating bill increases Please select the best answer from the choices provided

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

On a scatter plot, what does it mean when both variables are increasing?a.positive correlationc.no correlationb.negative correlationd.line of best fit

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 a. negative correlation; as time passes, SUV sales decrease. b. no correlation c. positive correlation; as time passes, the SUV sales decrease. d. positive correlation; as time passes, the SUV sales increase. Please select the best answer from the choices provided

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? a. About 191 pounds; negative correlation b. About 191 pounds; positive correlation c. About 185 pounds; negative correlation d. About 185 pounds; positive correlation Please select the best answer from the choices provided

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 a. no correlation b. positive correlation; as time passes, the CPI increases. c. positive correlation; as time passes, the CPI decreases. d. negative correlation; as time passes, the CPI decreases. Please select the best answer from the choices provided

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. a. negative relationship; as the speed decreases, the distance increases. b. positive relationship; as the speed decreases, the distance increases. c. positive relationship; as the speed increases, the distance increases. d. no relationship. Please select the best answer from the choices provided

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? a. 68 b. 98 c. 82 d. 72 Please select the best answer from the choices provided

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. United States Birth Rate (per 1000) Year Source: National Center for Health Statistics, U.S. Dept. of Health and Human Services a. no correlation b. positive correlation; as time passes, the birth rate increases. c. positive correlation; as time passes, the birth rate decreases. d. negative correlation; as time passes, the birth rate decreases. Please select the best answer from the choices provided

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. People Entering Amusement Park Time (minutes) a. positive; as time passes, the number of people entering decreases. b. negative; as time passes, the number of people entering decreases. c. no correlation d. positive; as time passes, the number of people entering increases. Please select the best answer from the choices provided