Unit Test — Unit test Answers

Graham uses a 10 by 10 grid to model a decreasing pattern. He cuts off a section representing a percent of the current area so that the remaining area represents the next term in the pattern, rounded to nearest whole centimeter. The area after each cut is shown on the graph.

Which graph shows a negative correlation?

Daniel is on an airplane flying to a destination 825 miles away. After one hour, the pilot announces that the plane is 495 miles away from its destination airport. In another hour, the pilot announces that the plane will begin its half-hour descent for the final 165 miles.

The graph represents the distribution of the number of questions answered correctly on a 50-question math test.

A 2-column table with 4 rows. The first column is labeled x with entries 0, 1, 4, 5. The second column is labeled y with entries 0, 1, 4, 5.

The dot plot represents the amount of rain recorded by rain gauges in different locations around a city.

Ms. Sutton recorded the word counts and scores of the top ten essays in a timed writing contest. The table shows her data.How does the word count of an essay relate to its score in the contest?

Violet creates two spinners for a game. Each spinner is spun once, and the sum is recorded. The table represents the sums of the spinners and the frequency of each sum.

The data set represents the total number of tickets each person purchased for a play.0, 0, 1, 1, 1, 2, 2, 2, 4, 4What is the median of the data?

Which phrases describe the relationship between heart rate and daily intake of caffeine? Select two options.

Justin packed two suitcases for his trip and compared the weights of the items he packed in each of the suitcases.Which statement is true about the box plots?

The table shows the number of calories in four meals and the cost of each meal.

The histogram represents boiling temperatures, in degrees Celsius, of tap water and of a saltwater mix.The median boiling temperature of the tap water is 100°C. The median boiling temperature of the salt water is 102°C. Which statement about the means is most likely true?

Which statements are true about the data used to create the histogram? Select three options.

Scientists studied a deer population for 10 years. They generated the function f(x) = 248(1.15)x to approximate the number of deer in the population x years after beginning the study. About how many deer are in the population 3 years after beginning the study?

The table shows the estimated number of lines of code written by computer programmers per hour when x people are working.

The graph shows the best-fit regression model for a set of data comparing the number of hours spent hiking and the number of miles traveled in one day.

The dot plot shows the number of words students spelled correctly on a pre-test.

Georgianna wants to use the linear model associated with the data in the table to make a prediction.

The box plots compare the exam scores of Ms. Dobson’s class to the rest of the students who took the test in the district.Which statement is true about the box plots? Select three options.