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OAE Mathematics: Summarizing Data Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. In the linear transformation formula, what does x represent?

Question 2 2. If a data set has two different modes, then what is it?

Question 3 3. Which of the following data sets has the highest dispersion?

Question 4 4.

Jonathan knows he scored in the 25th percentile on his psychology test. The professor gives the students the following list of grades (without names):

51, 37, 87, 95, 99, 78, 63, 96, 68, 84, 92

Assuming that there are 11 students in the class, what was Jonathan's test score?

Question 5 5. The mean of an original data set is 5. After linear transformation, the mean of the data set is now 20. Which of the following equations is a possible representation of the linear transformation?

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Question 6 6. All the members of a specified group are known as:

Question 7 7.

Find the standard deviation for the following data set:

16, 20, 14, 24, 16, 19, 30, and 8

Question 8 8.

Find the interquartile range for the following data set:

7, 9, 13, 4, 18, 3, 9, 10, 15, 8, 2, 6, 9

Question 9 9. How far a set of numbers are spread out is known as:

Question 10 10.

What is the variance of the data set below?

3, 7, 9, 11, 11, 11, 15, 17, 18, 24

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Question 11 11. If all other statistical procedures fail, the best predictor of a score will be the _____.

Question 12 12. Which of the following terms best describes the distribution in the chart below?

Question 13 13. If a data set undergoes a linear transformation with positive values of a and b, why might both the mean and the standard deviation of the data set increase?

Question 14 14.

Find the standard deviation for the following data set:

101, 106, 125, 142, 78, and 109

Question 15 15. A graph with no skew has what characteristic?

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Question 16 16.

For the following data set, select the best method for summarizing the data.

3, 3, 4, 5, 2, 9, 5, 2, 3, 4

Question 17 17. What is the smallest mathematical value in a data set?

Question 18 18.

Select the word or phrase that best fills in the blank:

If the index is not a _____, round the number up, then count the values in the data set from least to greatest until you reach the index.

Question 19 19. Which of the following is not a valid dispersion amount?

Question 20 20. What do we call a value that is much smaller or larger than the other values in a data set?

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Question 21 21.

Find the variance for the following data set:

101, 106, 125, 142, 78, and 109

Question 22 22. When a data set has a single mode, it is known to have what type of distribution?

Question 23 23. During the first four Summer Olympic games attended by the United States, these medal counts were awarded. If there is an outlier, identify it from the number of medals won during these Olympic Games.

Question 24 24. What are three methods you can use to find the spread in data?

Question 25 25. What is the difference between the upper quartile value and the lower quartile value?

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Question 26 26. What is the midpoint value of a data set, where the values are arranged in ascending or descending order?

Question 27 27.

Find the range for one standard deviation in the following data set:

16, 20, 14, 24, 16, 19, 30, and 8

Question 28 28. Which of the following is least likely to be reported due to it being the one most likely to change by the introduction of additional scores?

Question 29 29. During the first four Summer Olympic games attended by the United States, these medal counts were awarded. Calculate the mode number of medals won during these Olympic Games.

Question 30 30. During the first four Summer Olympic games attended by the United States, these medal counts were awarded. Calculate the mean number of medals won during these Olympic Games. (Round it to the nearest whole number.)

OAE Mathematics: Summarizing Data Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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