What percent of the girls’ ages is more than 1 year different from the age predicted by the line of best (linear regression) fit for the data. Round to the nearest percent.
Delaware has an area of 2,000 square miles. Which is true if Delaware is included in the data set?
The vertices of quadrilateral EFGH are E ( 1, 1), F( 5, 3), G (7, 7), and H(3, 5). What kind of quadrilateral is EFGH?
R is the midpoint of segment PS. Q is the midpoint of segment RS.
P is located at (8, 10), and S is located at (12, 6). − What are the coordinates of Q?
The number of points scored by a basketball player in the first eight games of a season are shown below.
What would happen to the data distribution if she scored 24, 22, 27, and 28 points in her next four games?
A triangle has vertices at (6, 3), (2, 5), and ( − 4, 4) . What is the approximate perimeter of the triangle?
One endpoint of RS is R(4, 6), and its midpoint is Q(6, 9). What are the coordinates of the other endpoint, S?
A line segment has endpoints of P(5, 6) and Q(1, –10). What are the coordinates of the midpoint?
A diameter of a circle has endpoints at (8, 12) and (2, 6). What are the coordinates of the center of the circle?
A square has vertices at (1, –2), (7, –2), (7, 3), and (1, 3). The diagonals of the square intersect at their midpoints. At what point do the diagonals of the square intersect?
Three vertices of a rectangle are located at the points (2, 1), (–3, –2), and (–1, –4). What are the coordinates of the fourth vertex of the rectangle?
The line of best fit for a data set is y = 348x + 19. The point (2, 700) is in the data set. What is the residual value for that data point?
Using the best-fit linear model, which x-value has the largest residual?
The data is modeled with a best-fit linear function. Which data point is closest to its predicted value?
Maria recorded the number of ants in a colony each week for six weeks.
Maria used the best-fit linear function to model the data. Which statement about the residuals is true?
Ms. Reid recorded the number of goals her team scored during 7 games.
5, 4, 2, 1, 3, 6, 1
In the next game, the team scored 13 goals. How did this affect the mean and median of the data set?
Mr. Gonzalez asked students in two of his classes how many hours they spend each week playing video games. The results are shown here. class 1: 0, 5, 5, 10, 10, 10, 10, 11, 12 class 2: 6, 10, 10, 12, 15, 18, 25, 30
Which statement correctly compares the standard deviation of the two classes?
The cost, in thousands of dollars, of cars on two different sales lots are shown in this table.
Which statement is true?
This table shows how many movie tickets were sold at a theater each night for a week.
The data set was modeled with the linear best-fit model. What is the correlation coefficient to the nearest hundredth?
This table shows the number of minutes, y, a college student studies each night, x.
The data set is modeled with the linear best-fit function. Using the correlation coefficient, what is the relationship between the variables?
A scientist is growing a bacteria culture in a Petri dish. This table shows the amount, y, of bacteria in the Petri dish after x days.
The data can be modeled with the best-fit exponential model. Based on the model, approximately how many bacteria will be in the Petri dish after 2 weeks
The line of best fit for a data set is
This table shows how the value of a machine decreases exponentially.
Using the best-fit exponential model, what will be the approximate value of the machine when it is 12 years old? Round to the nearest dollar.
