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# Summarizing Data Chapter Exam

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.
What is the range of the data set below?

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

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Question 2
2.
The following data set represents the minimum wage for 1990-2000. Calculate the median. (As this is money, round to two decimal places.)

8.25, 9.80, 7.25, 7.25, 7.25, 8.75, 8.44, 9.50, 9.60, 9.50

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Question 3
3.
Find the variance for the following data set:

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

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Question 4
4.
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 5 5. If all other statistical procedures fail, the best predictor of a score will be the _____.

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#### Question 6 6. A sample is usually intended to be

#### Question 7 7. During the first four Summer Olympic games attended by the United States, these medal counts were awarded. Calculate the median number of medals won during these Olympic Games.

#### Question 8 8. What is a group of values and/or means that divide a data set into quarters, or groups of four?

#### Question 9 9. What is the smallest mathematical value in a data set?

#### Question 10 10. The value that occurs the most frequently in a data set is known as the _____.

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#### Question 11 11. When a data set is visually symmetrical, what occurs all at the same point?

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Question 12
12.
Find the standard deviation for the following data set:

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

#### Question 13 13. When a data set has a single mode, it is known to have what type of distribution?

#### Question 14 14. All the members of a specified group are known as:

#### Question 15 15. What is the relationship between two mathematical values, where each value can be less than, greater than, or equal to the second value?

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#### Question 16 16. What is a ranking system in which the mathematical values that are equal are given equal rank and the next, lesser value is given the next highest rank?

#### Question 17 17. What is the measure of how far the numbers in a data set are away from the mean or the median?

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Question 18
18.
A data set contains the following numbers:

9, 1, 10, 12, 13, 15, 12, 8

Which of the following options would describe the data set best?

#### Question 19 19. To find the median of a set of values, what is the first thing one must do?

#### Question 20 20. What is a measure that indicates what percent of the given population scored at or below the measure?

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#### Question 21 21. The equation for linear transformation is:

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Question 22
22.
Find the population variance of the following data set:

11, 12, 55, 4, 17, 13, 19

#### Question 23 23. 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?

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Question 24
24.
What is the minimum in the data set?

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

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Question 25
25.
Phyllis is also in Jonathan's psychology class. She knows she scored in the 90th 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 Phyllis's test score?

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#### Question 26 26. What do we call areas in a data set where no observations have been made?

#### Question 27 27. Which of the following terms best describes the distribution in the chart below?

#### Question 28 28. You have a set of numbers you are working with to provide some data. You add them all up and divide that sum by the total number of values in your set. What statistic did you just produce?

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Question 29
29.
Find the range for one standard deviation in the following data set:

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

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Question 30
30.
What is the variance of the data set below?

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

#### 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!