EOG #4-Statistics

The scatterplot shows a relationship. Which is the BEST description of the data in the scatterplot?

• linear with a positive correlation

• linear with a negative correlation

• nonlinear with a positive correlation

• nonlinear with a negative correlation

Which situation would most likely show a negative association?

• the age of a car and its resale value

• the weight of a dog and the amount of food it eats per day

• the number of minutes exercised per day and a person's height

• the amount of time a boy plays video games and his savings account

A scatterplot is shown. Which equation represents a line of best fit for the scatterplot?

• y = -3x + 100

• y = -2x + 86

• y = x + 40

• y = 2x + 66

Each point on the scatter plot represents the number of hours a student studied for a test and the student's test scores. Which equation is the closest approximation to the line of best fit?

• y = -10x +92

• y = 6x +59

• y = 10x +45

• y = 15x + 30

Four lines are shown as a possible "line of best fit" for the given data points. Based on the plotted points which line is the BEST fit?

• line a

• line b

• line c

• line d

Penelope constructed the scatter plot. Which statement describes the function that would most appropriately model the data?

• a straight line with negative slope

• a straight line with positive slope

• a curved line that is increasing

• a curved line that is decreasing

A plane travels from Los Angeles to New York City. The distance in miles, d, of the plane from New York City h hours after the plane takes off can be modeled using the equation d = 2475 - 445h. What is the meaning of the slope in this scenario?

• The distance, in miles, the plane travels in one hour

• the distance, in miles, from Los Angeles to New York City

• The amount of time, in hours, it takes the plane to travel one mile

• the amount of time, in hours, it takes the plane to travel from Los Angeles to New York City

The scatter plot represents the average height of girls from birth to 12 months of age. Based on a linear model of data, what is the approximate average of a 16 month old girl?

• 17 inches

• 31 inches

• 35 inches

• 40 inches

Samantha surveyed students about implementing a dress code at her school. The responses of the survey are shown in the frequency table. What percent of seventh graders are against implementing a dress code?

• 17%

• 23%

• 35%

• 70%

A bowling alley provides bowling balls with weights of 11, 12, 13, and 14 pounds. This information is shown in the table along with the number of bowling balls used by 120 student bowlers in Grades 6, 7, and 8. What fraction of student bowlers in Grade 7 used a 13 pound bowling ball?

• 1/6

• 1/5

• 2/5

• 2/3