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NES Math: 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!

Page 1

Question 1 1. What is a single number that summarizes an entire data set?

Question 2 2. A part of a population used to describe the whole group is known as:

Question 3 3. When a data set has two different modes, it is known as what type of distribution?

Question 4 4.

Find the sample variance of the following data set:

2, 3, 4, 7, 10, 1, 2

Question 5 5. If all other statistical procedures fail, the best predictor of a score will be the _____.

Page 2

Question 6 6. What is the midpoint value of a data set, where the values are arranged in ascending or descending order?

Question 7 7. What is the difference between the upper quartile value and the lower quartile value?

Question 8 8. If there are two modes, you should _____.

Question 9 9.

What is the minimum in the data set?

105, 88, 93, 102, 97, 93, 96, 86, 88, 82, 79, 85, 77, 94, 91, 87

Question 10 10. Which of the following terms best describes the distribution in the chart below?

Page 3

Question 11 11. All of the students in Jasmine's class have had their height measured. Jasmine is the 12th tallest person out of 560 students. What percentile is Jasmine's height in?

Question 12 12.

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

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

Question 13 13.

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 14 14. A sample is usually intended to be

Question 15 15. The equation for linear transformation is:

Page 4

Question 16 16. What is the sum of the numbers in a data set divided by the total number of values in the data set?

Question 17 17. Which of the following data sets has the highest dispersion?

Question 18 18. What is a measure that indicates what percent of the given population scored at or below the measure?

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

Question 20 20. A statistician makes a graph, which includes a shape that's almost mirrored perfectly across a line, but not quite. How should we describe the shape?

Page 5

Question 21 21.

What is the range of the data set below?

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

Question 22 22. 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 23 23. In the linear transformation formula, what does x represent?

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

Question 25 25. A graph that peaks to the left or the right of the center is known as _____.

Page 6

Question 26 26. What is a value that is much larger or smaller than the other values in a data set, or a value that lies outside the given data set?

Question 27 27. A graph that trails off more to the right is said to be what?

Question 28 28.

Find the interquartile range for the following data set:

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

Question 29 29.

Find the variance for the following data set:

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

Question 30 30. What do we call a value that is much smaller or larger than the other values in a data set?

NES Math: 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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