Mathematics Question 1

(Multiple Choice Worth 4 points) (06.05) Susie collected data on the favorite type of drink of the students of the two grades. The table below shows the relative frequencies of rows for the data collected: Cola Juice Milk Shake Total Grade 80.500.100.401.00Grade 90.530.200.271.00Total0.360.320.321.00Based on the data, which statement is most likely correct? In Grade 8, 10 students liked juice. In Grade 8, 40% of students liked milkshakes. In Grade 9, 47% of students liked cola. In Grade 9, 53 students liked cola.

Question 2

(Multiple Choice Worth 4 points) (06.07) Two statements are shown below: It is a cause-and-effect relationship between two events. It is a statistical measure, expressed as a number, which describes the size and direction of a relationship between two or more variables. Which of the following describes the statements? One defines correlation, and two defines causation. One defines causation, and two defines correlation. Both one and two define correlation. Both one and two define causation.

Question 3

(Multiple Choice Worth 4 points) (06.06) The graph below shows some scatter points: Which statement best describes how including the points (3.5, 0.8), (4, 0.5), (4.5, 0.2), (5, 0.2), (5.5, 0.2), and (6, 0.2) would affect the graph? The graph would become linear. The graph would become parallel to the y-axis. The function representing the graph would become exponential. The function representing the graph would become parallel to the y-axis.

Question 4

(Multiple Choice Worth 4 points) (06.07) The graph below plots the values of y for different values of x: Which correlation coefficient best matches the data plotted on the graph? -0.5 0 0.25 0.90

Question 5

(Multiple Choice Worth 4 points) (06.01) The following data set shows the pulse rate of some cattle at a farm:65, 68, 69, 67, 69, 68, 65, 69, 65, 68, 67, 69, 68, 67, 67, 69Which dot plot best represents the data?

Question 6

(Multiple Choice Worth 4 points) (06.07) Sarah described the following situation: When fertilizer was added to one plant and nothing was added to another plant, there was a noticeable difference in the color of the leaves of the plants. Which of the following best describes the situation? This is an example of correlation but not causation. This is an example of causation but no correlation. This is an example of both correlation and causation. This is an example of neither correlation nor causation.

Question 7

(Multiple Choice Worth 4 points) (06.02) Two groups of students were asked how far they lived from their school. The table below shows the distances in miles: Group A (distance in miles)11.533.22.81.51.82.52.2Group B (distance in miles)22.53.231.82.431.51.8Which statement best compares the mean distances for the two groups? It is equal for Group A and Group B. It is greater for Group B than Group A. Its value for Group A is double its value for Group B. Its value for Group B is double its value for Group A.

Question 8

(Multiple Choice Worth 4 points) (06.06) The scatter plot below plots the math scores and IQs of some students in a class: Based on the plot, which conclusion is correct? The math score of a student does not depend on the student’s IQ. The math score of a student is lower if the student’s IQ is lower. The math score of a student is higher if the student’s IQ is lower. The math score of a student is higher if the student’s IQ is higher.

Question 9

(Multiple Choice Worth 4 points) (06.02) The following data shows wind speed in a city, in miles per hour, on consecutive days of a month:9.4, 9.2, 9.7, 9.8, 9.4, 9.7, 9.6, 9.3, 9.2, 9.1, 9.4Which box plot best represents the data?

Question 10

(Multiple Choice Worth 4 points) (06.07) The graph shows the girth of the trunk of a fir tree after different numbers of years: What does the y-intercept of the graph represent? The girth increases by 7 centimeters each year. The girth increases by 5 centimeters each year. The original girth was 5 centimeters. The original girth was 7 centimeters.

Question 11

(Multiple Choice Worth 4 points) (06.06) The scatter plot below shows the length of spring (y) for different forces applied on it (x): Based on the scatter plot, what was the approximate kilogram-force applied when the elongation was 12.3 cm? 210 236 320 326

Question 12

(Multiple Choice Worth 4 points) (06.03) The table below shows the number of people of different age groups who participated in a talk show: Age Group16 to 2021 to 2526 to 3031 to 3536 to 4041 to 4546 to 5051 to 5556 to 60Number of Participants3332303035363433Which statement best describes the histogram for these data? It will be bell-shaped because the mean is equal to the median. It will be skewed to the left because of the presence of outlier 3. It will be skewed to the right because of the presence of outlier 3. It will be bell-shaped because the mean is equal to the interquartile range.

Question 13

(Multiple Choice Worth 4 points) (06.07) The table below shows the values of y for different values of x:x78910111213y3579101314The correlation coefficient for the data is 0.9976. Which statement is true about the data in the table? There is a strong positive relationship between x and y. There is a strong negative relationship between x and y. There is a weak positive relationship between x and y. There is a weak negative relationship between x and

question 14

(Multiple Choice Worth 4 points) (06.06) The table below shows the air pressure in pounds per square inch at different altitudes in thousand feet: Altitude (thousand feet)51015202530354045Air pressure (pounds per square inch)12.410.276.25.24.23.42.62.0Which scatter plot best represents the data in the table?

Question 15

(Multiple Choice Worth 4 points) (06.03) A box plot was made to represent the number of matches won by 14 participants in a tennis tournament. The box plot had the box shifted to the right so that the left tail was much longer than the right tail. Based on the box plot, which conclusion is correct? The mean and median of matches won are equal. The mean of matches won is more than the median of matches won. Most of the participants won many matches, but there were some participants who won very few matches compared to the others. Most of the participants won very few matches, but there were some participants who won many matches compared to the others.

Question 16

(Multiple Choice Worth 4 points) (06.01) The following table shows the number of hours some students of a class listen to music each day: Student ABCDEFGHIJKLMNO Hours 6.512.52.5410.54.551121.51.52Which histogram best represents the data?

Question 17

(Multiple Choice Worth 4 points) (06.05) Annie found that 57 students in her school knew French and 23 of those students knew Spanish, as well. There were 11 students who did not know French but knew Spanish. There were 4 students who knew neither French nor Spanish. Which table best summarizes the data collected by Annie? Knew Spanish Did not know Spanish Total Knew French573491Did does not know French11415Total6838106 Knew Spanish Did not know Spanish Total Knew French123446Did not know French11415Total233861/label> Knew Spanish Did not know Spanish Total Knew French233457Did not know French11415Total343872 Knew Spanish Did not know Spanish Total Knew French233457Did not know French41115Total274572

Question 18

(Multiple Choice Worth 4 points) (06.03) The following data show the prices of different types of outfits at a store: $25, $27, $28, $26, $25, $27, $25, $27, $26, $28, $29Which statement is correct about the box plot for the above data? The box plot will be symmetrical because there are no exceptionally high or low prices. The box plot will be skewed because there are no exceptionally high or low prices. The box plot will have its left tail longer than the right tail because the distribution is skewed to the left. The box plot will have its left tail longer than the right tail because the distribution is skewed to the right.

Question 19

(Multiple Choice Worth 4 points) (06.06) The function below shows the distance y, in miles, of a swimmer from a beach at different times x: y = 100 – 8xWhich scatter plot best represents the function?

Question 20

(Multiple Choice Worth 4 points) (06.06) Graph 1 shows the sales of ice cream, in dollars, at Harry’s store for different values of average monthly temperature. Graph 2 shows some additional data points. If the points shown on graph 2 are included in graph 1, how will the line of best fit for graph 1 be affected? It will shift up slightly. It will remain the same. It will shift down slightly. It will shift down considerably.

Question 21

(Multiple Choice Worth 4 points) (06.07) The function below models the correlation between the number of hours a plant is kept in sunlight (x) and the height (y), in mm, to which it grows = 4 + 2xWhat does the slope of this function represent? The original height of the plant was 4 mm. The original height of the plant was 2 mm. The height of the plant increases by 2 mm for every hour of sunlight it receives. The height of the plant increases by 4 mm for every hour of sunlight it receives.

Question 22

(Multiple Choice Worth 4 points) (06.05) Out of the 150 students at a summer camp, 72 signed up for canoeing. There were 23 students who signed up for trekking, and 13 of those students also signed up for canoeing. Use a two-way table to organize the information and answer the following question: Approximately what percentage of students signed up for neither canoeing nor trekking? 45% 68% 28% 42%

Question 23

(Multiple Choice Worth 4 points) (06.02) Two groups of students were asked how many pets they had. The table below shows the numbers for each group: Company A121135423Company B323222112Based on the table, which of the following is true? The interquartile range for Group A students is 0.5 less than the interquartile range for Group B students. The interquartile range for Group A students is 1.5 more than the interquartile range for Group B students. The interquartile range for Group A students is equal to the interquartile range for Group B students. The interquartile range for Group A students is 1 more than the interquartile range for Group B students.

Question 24

(Multiple Choice Worth 4 points) (06.06) The scatter plot shows the number of DVDs Aaron sold in different months: What is the approximate predicted number of DVDs Aaron will sell in the 13th month? 380 390 400 420

Question 25

(Multiple Choice Worth 4 points) (06.06) A company pays its employees a fixed base salary and a commission based on sales. The scatter plot shows the total earning of an employee of the company (y) based on sales (x): Which function best represents the data in the scatter plot? y = 0.1x + 10 y = 0.1x – 10 y = 0.1x + 1 y = 0.2x – 1

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